Dr Shaif-ul Alam 

Ylä-Jarkko, K., Alam, S.U., Turner, P.W., Godfrey, I., Singleton, J., Grudinin, A.B. and Nilsson, J. (2003) Cladding pumping technology for L-band EDFAs. Optical Fiber Communication Conference, Washington DC, USA. 23 - 28 Mar 2003. (doi:10.1109/OFC.2003.1248277).

Nilsson, J., Alam, S.-U., Alvarez-Chavez, J.A., Turner, P.W., Clarkson, W.A. and Grudinin, A.B. (2003) High-power and tunable operation of erbium-ytterbium co-doped cladding-pumped fiber laser. IEEE Journal of Quantum Electronics, 39 (8), 987-994. (doi:10.1109/JQE.2003.814373).

Ylä-Jarkko, K.H., Selvas, R., Soh, D.B.S., Sahu, J.K., Codemard, C.A., Nilsson, J., Alam, S.U. and Grudinin, A.B. (2003) A 3.5 W 977 nm cladding-pumped jacketed air-clad ytterbium-doped fiber laser. Advanced Solid-State Photonics (ASSP), San Antonio, USA. 03 - 05 Feb 2003. (doi:10.1364/ASSP.2003.103).

Ylä-Jarkko, K.H., Codemard, C., Singleton, J., Turner, P.W., Godfrey, I., Alam, S.-U., Nilsson, J., Sahu, J.K. and Grudinin, A.B. (2003) Low-noise intelligent cladding-pumped L-band EDFA. IEEE Photonics Technology Letters, 15 (7), 909-911. (doi:10.1109/LPT.2003.813433).

Selvas, R., Sahu, J.K., Fu, L.B., Jang, J.N., Nilsson, J., Grudinin, A.B., Ylä-Jarkko, K., Alam, S.-U., Turner, P.W. and Moore, J. (2003) High-power, low-noise, Yb-doped, cladding-pumped, three-level fiber sources at 980 nm. Optics Letters, 28 (13), 1093-1095. (doi:10.1364/OL.28.001093).

Fu, L.B., Selvas, R., Ibsen, M., Sahu, J.K., Jang, J.N., Alam, Shaif-ul, Nilsson, J., Richardson, D.J., Payne, D.N., Codemard, C., Goncharov, S., Zalevsky, I. and Grudinin, A.B. (2003) Fiber-DFB laser array pumped with a single 1W cw Yb-fiber laser. IEEE Photonics Technology Letters, 15 (5), 655-657. (doi:10.1109/LPT.2003.810253).

Alam, Shaif-Ul (2000) Advanced fibre circuitry for all-optical signal processing. University of Southampton, Department of Electronics and Computer Science, Doctoral Thesis.

Alam, S.U., Nilsson, J., Turner, P.W., Ibsen, M., Grudinin, A.B. and Chin, A. (2000) Low cost multi-port reconfigurable erbium doped cladding pumped fibre amplifier. ECOC 2000, , Munich, Germany. 03 - 06 Sep 2000.

Codemard, C., Ylä-Jarkko, K., Singleton, J., Turner, P.W., Godfrey, I., Alam, S.U., Nilsson, J., Sahu, J.K. and Grudinin, A. (2002) Low noise intelligent cladding pumped L-band EDFA. ECOC 2002, Copenhagen, Denmark. 07 - 11 Sep 2002.

Fu, L.B., Selvas, R., Ibsen, M., Sahu, J.K., Alam, S.U., Nilsson, J., Richardson, D.J., Payne, D.N., Codemard, C., Goncharov, S., Zalevsky, I. and Grudinin, A.B. (2002) An 8-channel fibre-DFB laser WDM-transmitter pumped with a single 1.2W Yb-fibre laser operated at 977nm. ECOC 2002, Copenhagen, Denmark. 07 - 11 Sep 2002.

Selvas, R., Sahu, J.K., Nilsson, J., Alam, S.U. and Grudinin, A.B. (2002) Q-switched 980nm Yb-doped fiber laser. CLEO 2002: Conference on Lasers and Electro-Optics, , Long Beach, United States. 19 - 24 May 2002.

Alam, S.-U., Turner, P.W., Grudinin, A.B., Nilsson, J. and Alvarez-Chavez, J.A. (2001) High-power cladding pumped erbium-ytterbium co-doped fiber laser. OFC 2001: Optical Fiber Communications Conference, Anaheim, USA. 17 - 22 Mar 2001. 3 pp .

Alam, Shaif-ul, Nilsson, J., Turner, P.W., Clarkson, W.A. and Grudinin, A.B. (2001) Erbium-ytterbium co-doped cladding-pumped fiber laser tunable from 1533 to 1600nm with up to 6.7W of output power. ASSL 2001: Conference on Advanced Solid State Lasers, Washington DC, USA. 28 - 31 Jan 2001. 3 pp .

Sahu, J.K., Renaud, C.C., Nilsson, J., Clarkson, W.A., Alam, S.U. and Grudinin, A.B. (2001) Single-polarization laser operation in polarization-maintaining single-polarization pumped erbium-doped fiber. CLEO 2001: Conference on Lasers and Electro-Optics, , Baltimore, United States. 06 - 11 May 2001. 2 pp .

Nilsson, J., Clarkson, W.A., Selvas, R., Sahu, J.K., Turner, P.W., Alam, S.-U. and Grudinin, A.B. (2004) High-power wavelength-tunable cladding-pumped rare-earth-doped silica fiber lasers. Optical Fiber Technology, 10 (1), 5-30. (doi:10.1016/j.yofte.2003.07.001).

Ylä-Jarkko, K.H., Alam, S.-U., Turner, P.W., Moore, J., Nilsson, J., Selvas, R., Soh, D.B.S., Codemard, C. and Sahu, J.K. (2003) Cladding pumping technology for next generation of fiber amplifiers and lasers. OAA 2003: Optical Amplifiers and Their Applications, Otaru, Japan. 05 - 08 Jul 2003.

Ylä-Jarkko, K., Selvas, R., Soh, D.B.S., Sahu, J.K., Codemard, C.A., Nilsson, J., Alam, S.-U. and Grudinin, A.B. (2003) A 3.5W 977nm cladding-pumped jacketed-air clad ytterbium-doped fiber laser. ASSP 2003, , San Antonio, United States. 02 - 05 Feb 2003. 5 pp .

Selvas, R., Ylä-Jarkko, K., Alam, S.-U., Nilsson, J., Turner, P.W., Moore, J., Sahu, J.K. and Grudinin, A.B. (2003) High power 977nm fibre sources based on jacketed air-clad fibres. Optical Fiber Communication Conference 2003, , Atlanta, United States. 23 - 28 Mar 2003. 1 pp .

Nilsson, J., Jeong, Y., Alegria, C., Selvas, R., Sahu, J.K., Williams, R.B., Furusawa, K., Clarkson, W.A., Hanna, D.C., Richardson, D.J., Monro, T.M., Payne, D.N., Ylä-Jarkko, K., Alam, S.-U. and Grudinin, A.B. (2003) Beyond 1kW with fiber lasers and amplifiers. Optical Fiber Communication Conference 2003, , Atlanta, United States. 23 - 28 Mar 2003. 1 pp .

Alam, S.U. and Grudinin, A.B. (2004) Tunable picosecond frequency-shifted feedback fiber laser at 1550 nm. IEEE Photonics Technology Letters, 16 (9), 2012-2014. (doi:10.1109/LPT.2004.831958).

Nilsson, J., Jeong, Y., Yoo, S.W., Boyland, Alexander, Maran, J.-N., Codemard, C.A., Payne, D.N., Mitchell, I., Alam, S.-U., Norman, S. and Horley, R. (2007) Progress in high power single emitter fiber sources. 20th Annual Solid State and Diode Laser Technology Review, Los Angeles, United States. 24 - 27 Jun 2007.

Nilsson, Johan, Sahu, Jayanta K., Jeong, Yoonchan, Clarkson, W.A., Selvas, R., Grudinin, Anatoly B. and Alam, Shaif-ul (2003) High power fiber lasers: new developments. Durvasula, L.N. (ed.) Photonics West, San Jose, United States. 27 - 28 Jan 2003. pp. 50-59 . (doi:10.1117/12.478310).

Alam, S.U., Harker, A.T., Horley, R.J., Ghiringhelli, F., Varnham, M.P., Turner, P.W. and Zervas, M.N. (2008) All-fibre, high power, cladding-pumped 1565nm MOPA using high brightness 1535nm pump sources. CLEO/QELS 2008, , San Jose, United States. 03 - 08 May 2008. (Submitted)

Hayes, John, Petrovich, Marco N., Poletti, Francesco, Dasgupta, Sonali, Feng, Xian, Loh, Wei, Broderick, Neil, Chen, Kang Kang, Alam, Shaif-ul, Lin, Dejiao, Malinowski, Andrew and Richardson, David J. (2009) Advanced fibre designs for high power laser beam delivery and generation. Photonex '09, , Coventry, United Kingdom. 14 - 15 Oct 2009. 2 pp .

Chen, K.K., Alam, S.-U., Hayes, J., Lin, Dejiao, Malinowski, A. and Richardson, D.J. (2009) 100W single mode single polarization picosecond ytterbium doped fibre MOPA frequency doubled to 530nm. CLEO Pacific Rim 2009, , Shanghai, China. 30 Aug - 03 Sep 2009.

Alam, S.U., Chen, Kangkang, Lin, Dejiao, Shen, Yonghang, Cai, Shuangshuang, Wu, Bo, Jiang, Peipei, Malinowski, Andrew and Richardson, David (2009) Externally modulated diode seeded Yb³⁺- doped fiber MOPA pumped high power optical parametric oscillator. Photonics West 2009, , San Jose, United States. 24 - 29 Jan 2009. 1 pp . (doi:10.1117/12.813658).

Lin, Dejiao, Alam, Shaif-ul, Chen, Kang Kang, Malinowski, Andrew, Norman, Steve and Richardson, David (2009) 100W fully-fiberised ytterbium doped master oscillator power amplifier incorporating adaptive pulse shaping. CLEO/QELS 2009, Baltimore, United States. 30 May - 04 Jun 2009. 2 pp .

Chen, Kang Kang, Alam, Shaif-ul, Lin, Dejiao, Malinowski, Andrew and Richardson, David J. (2009) 100W fiberised linearly-polarized picosecond ytterbium doped fiber MOPA. CLEO/QELS 2009, Baltimore, United States. 30 May - 04 Jun 2009. 2 pp .

Sahu, J.K., Kalita, M.P., Alam, S.-U., Ibsen, M. and Boyland, A.J. (2009) 12W Ytterbium doped all-fiber laser at 1179nm. European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany. 13 - 18 Jun 2009. (doi:10.1109/CLEOE-EQEC.2009.5191449).

Richardson, David, Malinowski, Andrew, Alam, Shaif-ul, Price, Jonathan, Chen, Kang Kang, Jeong, Yoonchan, Nilsson, Johan, Sahu, Jayanta and Payne, David (2008) Harnessing the power of light - the fibre laser revolution. JNOG 2008, Lannion, France. 12 - 19 Oct 2008.

Alam, S.U., Chen, Kangkang, Lin, Dejiao, Shen, Yonghang, Cai, Shuangshuang, Wu, Bo, Jiang, Peipei, Malinowski, Andrew and Richardson, David (2008) High power pulsed optical parametric oscillator at 3.5 micron pumped by a diode seeded Yb³⁺- doped fiber MOPA. Photonics IIT, , Delhi, India. 13 - 17 Dec 2008. 1 pp .

Alam, S.U., Grudinin, A.B. and Burdge, G.L. (1999) 250 GHz intensity modulation via Raman gain in the soliton regime. 25th European Conference on Optical Communication (ECOC ‘99), , Nice, France. 25 - 29 Sep 1999.

Ibsen, M., Alam, S.U., Zervas, M.N., Grudinin, A.B. and Payne, D.N. (1999) All-fibre DFB laser WDM transmitters with integrated pump redundancy. 25th European Conference on Optical Communication (ECOC ‘99), , Nice, France. 25 - 29 Sep 1999.

Alam, S.U., Biffi, G., Grudinin, A.B. and Burdge, G. (1999) Cascaded nonlinearity: a simple technique to compensate Kerr effect in optical amplifiers. In Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest. Institute of Electrical and Electronics Engineers. pp. 5-7 . (doi:10.1109/OFC.1999.768046).

Traynor, N.J., Lefort, L., Alam, S.U., Biffi, G., Grudinin, A.B., Ross, G.W. and Hanna, D.C. (1998) Strong self-phase modulation in periodically poled lithium niobate under subpicosecond pump pulses. In Conference on Lasers and Electro-Optics Europe. IEEE. p. 68 .

Burdge, G., Alam, S.U., Grudinin, A.B., Khrushchev, I.Y., White, I.H., Ibsen, M. and Durkin, M. (1998) Data header erasure via Raman effect for all-optical in fibre processing. In Technical Digest Optical Fiber Communication Conference and Exhibit, 1998. IEEE. pp. 374-375 . (doi:10.1109/OFC.1998.657484).

Burdge, Geoff, Alam, Shaif-ul, Grudinin, Anatoly, Khrushchev, Igor, Durkin, Michael, Ibsen, Morten and White, Ian (1997) Ultra-fast intensity modulation via Raman gain for all-optical processing. In Proceedings of the European Conference and Exhibition on Optical Communication. Institute of Electrical and Electronics Engineers. pp. 61-64 .

Ibsen, M., Alam, S.U., Zervas, M.N., Grudinin, A.B. and Payne, D.N. (1999) 8 and 16 channel all-fibre DFB laser WDM transmitters with integrated pump redundancy. IEEE Photonics Technology Letters, 11 (9), 1114-1116. (doi:10.1109/68.784207).

Burdge, Geoff, Alam, Shaif-ul, Grudinin, Anatoly B., Durkin, Michael, Ibsen, Morten, Khrushchev, Igor and White, Ian (1998) Ultrafast intensity modulation via Raman gain for all-optical in-fiber processing. Optics Letters, 23 (8), 606-608. (doi:10.1364/OL.23.000606).

Shen, Yonghang, Alam, S.-U., Chen, Kang Kang, Lin, Dejiao, Cai, Shuangshuang, Wu, Bo, Jiang, Peipei, Malinowski, A. and Richardson, D.J. (2009) PPMgLN based high power optical parametric oscillator pumped by Yb³⁺-doped fiber amplifier incorporates active pulse shaping. IEEE Journal of Selected Topics in Quantum Electronics, 15 (2), 385-392. (doi:10.1109/JSTQE.2008.2010412).

Malinowski, Andrew, Vu, Khu Tri, Chen, Kang Kang, Nilsson, Johan, Jeong, Yoonchan, Alam, Shaif-ul, Lin, Dejiao and Richardson, David J. (2009) High power pulsed fiber MOPA system incorporating electro-optic modulator based adaptive pulse shaping. Optics Express, 17 (23), 20927-20937. (doi:10.1364/OE.17.020927).

Beedell, James, Elder, Ian, Chen, Kang Kang, Alam, Shaif-ul, Richardson, David J. and Hand, Duncan (2009) Visible and mid-IR output using a fibre laser pump source. Titterton, David H. and Richardson, Mark A. (eds.) SPIE Security + Defence (7483) - Technologies for Optical Countermeasures VI, , Berlin. 31 Aug - 03 Sep 2009. (doi:10.1117/12.835443).

Malinowski, A., Lin, Dejiao, Chen, K.K., Alam, S.-U., Richardson, D.J., Zhang, Z., Ibsen, M., Miles, R.E., Stringer, M.R., Zhang, Y., Young, J., Wright, P. and Ozanyan, K. (2010) Fiber MOPA seeded difference frequency generation as a tuneable source for THz tomography. Terahertz '10, The Institute of Engineering and Technology, London, United Kingdom. 21 Jan 2010.

Kienle, Florian, Chen, Kang K., Alam, Shaif-ul, Gawith, Corin B.E., Mackenzie, Jacob I., Hanna, David C., Richardson, David J. and Shepherd, David P. (2010) High-power, variable repetition rate, picosecond optical parametric oscillator pumped by an amplified gain-switched diode. Optics Express, 18 (8), 7602-7610. (doi:10.1364/OE.18.007602).

Kienle, Florian, Chen, Kang K., Alam, Shaif-ul, Gawith, Corin B.E., Mackenzie, Jacob I., Hanna, David C., Richardson, David J. and Shepherd, David P. (2010) A high power, variable repetition rate, picosecond, optical parametric oscillator pumped by an amplified gain-switched diode. Rank Prize Funds Symposium on Biophotonics, Grasmere, United Kingdom. 22 - 25 Aug 2010.

Kienle, Florian, Teh, Peh Siong, Alam, Shaif-ul, Gawith, Corin B.E., Hanna, David C., Richardson, David J. and Shepherd, David P. (2010) Compact, high-pulse-energy picosecond optical parametric oscillator. Optics Letters, 35 (21), 3580-3582. (doi:10.1364/OL.35.003580).

Chen, Kang Kang, Alam, Shaif-ul, Horak, Peter, Codemard, Christophe A., Malinowski, Andrew and Richardson, David J. (2010) Excitation of individual Raman Stokes lines in the visible regime using rectangular-shaped nanosecond optical pulses at 530 nm. Optics Letters, 35 (14), 2433-2435. (doi:10.1364/OL.35.002433). (PMID:20634854)

Chen, Kang Kang, Price, Jonathan H.V., Alam, Shaif-ul, Hayes, John R., Lin, Dejiao, Malinowski, Andrew and Richardson, David J. (2010) Polarisation maintaining 100-W Yb-fiber MOPA producing micro-J pulses tunable in duration from 1-21 ps. Optics Express, 18 (14), 14385-14394. (doi:10.1364/OE.18.014385).

Chen, Kang Kang, Alam, Shaif-ul, Price, Jonathan H.V., Hayes, John R., Lin, Dejiao, Malinowski, Andrew, Codemard, Christophe, Ghosh, Debashri, Pal, Mrinmay, Bhadra, Shyamal K. and Richardson, David J. (2010) Picosecond fiber MOPA pumped supercontinuum source with 39 W output power. Optics Express, 18 (6), 5426-5432. (doi:10.1364/OE.18.005426).

Chen, Kang Kang, Alam, S.-U., Hayes, J.R., Baker, H.J., Hall, D.W., McBride, R., Price, J.H.V., Lin, Dejiao, Malinowski, A. and Richardson, D.J. (2010) 56W frequency doubled source at 530 nm pumped by a single-mode single-polarization picosecond Yb³⁺-doped fiber MOPA. IEEE Photonics Technology Letters, 22 (12), 893-895. (doi:10.1109/LPT.2010.2046633).

Kalita, M.P., Alam, S.-U., Codemard, C., Yoo, S., Boyland, A.J., Ibsen, M. and Sahu, J.K. (2010) Multi-watts narrow-linewidth all fiber Yb-doped laser operating at 1179 nm. Optics Express, 18 (6), 5920-5925. (doi:10.1364/OE.18.005920).

Hayes, J.R., Petrovich, M.N., Poletti, F., Horak, P., Broderick, N.G.R., Feng, Xian, Dasgupta, S., Loh, Wei H., Ghosh, Debashri, Pal, Mrinmay, Bhadra, Shyamal K., Chen, K.K., Price, J.H.V., Alam, S.U. and Richardson, D.J. (2010) Recent advances in microstructured fibers for laser delivery and generation. SPIE Photonics West, , San Francisco, United States. 23 - 28 Jan 2010. 7 pp .

Chen, K.K., Alam, S.-U., Codemard, C.A, Malinowski, A. and Richardson, D.J. (2010) Excitation of individual Raman Stokes lines of up-to ninth order using rectangular shaped optical pulses at 530nm. SPIE Photonics West, , San Francisco, United States. 23 - 28 Jan 2010. pp. 7582-7617 . (doi:10.1117/12.845933).

Chen, K.K., Alam, S.-U., Price, J.H.V., Hayes, J.R., Lin, Dejiao, Malinowski, A., Codemard, C., Ghosh, D., Pal, M., Bhadra, S.K. and Richardson, D.J. (2010) Picosecond fiber MOPA pumped supercontinuum source with 39W output power. Conference on Lasers and Electro-Optics/Quantum Electronics & Laser (CLEO/QELS), , San Jose, United States. 17 - 21 May 2010. 2 pp .

Chen, K.K., Alam, S.-U., Hayes, J.R., Lin, Dejiao, Malinowski, A. and Richardson, D.J. (2009) 100W single mode single polarization picosecond ytterbium doped fibre MOPA frequency doubled to 530nm. Photonex '09, , Coventry, United Kingdom. 14 - 15 Oct 2009. 2 pp .

Lin, Dejiao, Alam, Shaif-ul, Teh, Peh S., Chen, Kang Kang and Richardson, David J. (2011) Selective excitation of multiple Raman Stokes wavelengths (green-yellow-red) using shaped multi-step pulses from an all-fiber PM MOPA. Optics Express, 19 (3), 2085-2092. (doi:10.1364/OE.19.002085).

Lin, Dejiao, Alam, Shaif-ul, Teh, Peh Siong, Chen, Kang Kang and Richardson, David J. (2011) Tunable synchronously-pumped fiber Raman laser in the visible and near-infrared exploiting MOPA-generated rectangular pump pulses. Optics Letters, 36 (11), 2050-2052. (doi:10.1364/OL.36.002050).

Shi, J.D., Feng, X., Chen, K.K., Teh, P.S., Horak, P., Lin, Dejiao, Alam, S.-U., Loh, W.H., Richardson, D.J. and Ibsen, M. (2010) Efficient near-infrared supercontinuum generation in tellurite holey fiber pumped 320nm within the normal dispersion regime. Asia Communications and Photonics Conference and Exhibition (ACP 2010), , Shanghai Shi, China. 09 - 11 Dec 2010.

Desurvire, E., Kazmierski, C., Lelarge, F., Marcadet, X., Scavennec, André, Kish, F.A., Welch, D.F., Nagarajan, R., Joyner, C.H., Schneider, R.P., Corzine, S.W., Kato, M., Evans, P.W., Ziari, M., Dentai, A.G., Pleumeekers, J.L., Muthiah, R., Bigo, S., Nakazawa, M., Richardson, D.J., Poletti, F., Petrovich, M.N., Alam, S.U., Loh, W.H. and Payne, D.N. (2011) Science and technology challenges in XXIst century optical communications. Comptes Rendus Physique, 12 (4), 387-416. (doi:10.1016/j.crhy.2011.04.009).

Shi, Jindan, Feng, Xian, Horak, Peter, Chen, Kangkang, Teh, Peh Siong, Alam, Shaif-ul, Loh, Wei H., Richardson, David J. and Ibsen, Morten (2011) 1.06 µm picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient. Journal of Lightwave Technology, 29 (22), 3461-3469. (doi:10.1109/JLT.2011.2169490).

Kienle, Florian, Chen, Kang Kang, Alam, S.-U., Gawith, C.B.E., Mackenzie, J.I., Hanna, D.C., Richardson, D.J. and Shepherd, D.P. (2010) Variable repetition rate, high power, picosecond optical parametric oscillator synchronously pumped by a fibre-amplified gain-switched laser diode. International Summer School in Ultrafast Nonlinear Optics SUSSP, Edinburgh, United Kingdom. 10 - 20 Aug 2010.

Kienle, Florian, Lin, Dejiao, Alam, Shaif-ul, Hung, Hazel, Gawith, Corin B.E., Major, Huw, Richardson, David J. and Shepherd, David P. (2012) Green-pumped, picosecond MgO:PPLN optical parametric oscillator. Journal of the Optical Society of America B, 29 (1), 144-152. (doi:10.1364/JOSAB.29.000144).

Jung, Y., Alam, S.U., Li, Z., Dhar, A., Giles, D., Giles, I.P., Sahu, J.K., Poletti, F., Grüner-Nielsen, L. and Richardson, D.J. (2011) First demonstration and detailed characterization of a multimode amplifier for space division multiplexed transmission systems. Optics Express, 19 (26), B952-B957. (doi:10.1364/OE.19.00B952).

Shi, Jindan, Alam, Shaif-ul and Ibsen, Morten (2012) Highly efficient Raman distributed feedback fibre lasers. Optics Express, 20 (5), 5082-5091. (doi:10.1364/OE.20.005082).

Jung, Y., Alam, S.-U., Li, Z., Dhar, A., Giles, D., Giles, I., Sahu, J.K., Poletti, F. and Richardson, D.J. (2012) Detailed study of modal gain in a multimode EDFA supporting LP01 and LP11 mode group amplification. Optical Fiber Communication Conference and Exposition, , Los Angeles, United States. 04 - 08 Mar 2012.

Lim, E.L., Alam, S.-U. and Richardson, D.J. (2012) High energy in-band pumped erbium doped pulse fibre laser. Honea, Eric C. and Hendow, Sami T. (eds.) Photonics West 2012, , San Francisco, United States. 21 - 26 Jan 2012. 82371V . (doi:10.1117/12.908429).

Lin, Dejiao, Alam, S.-U., Shen, Y., Chen, T. and Richardson, D.J. (2012) An all-fibre PM MOPA pumped high-power OPO at 3.82 microns based on large aperture PPMgLN. Photonics West 2012, , San Francisco, United States. 21 - 26 Jan 2012. (doi:10.1117/12.906364).

Richardson, D.J., Chen, Kang Kang, Lin, Di, Lim, Ee Leong, Teh, P.S., Malinowski, A., Price, J.H.V., Kienle, Florian, Shepherd, D.P. and Alam, S.-U. (2010) Ultrafast fibre lasers for biophotonics. Rank Prize Fund Ultrafast Fibre Lasers for Biophotonics, , Grasmere, United Kingdom. 23 - 26 Aug 2010.

Kienle, Florian, Teh, Peh Siong, Lin, Dejiao, Alam, Shaif-ul, Price, Jonathan H.V., Hanna, D.C., Richardson, David J. and Shepherd, David P. (2012) High-power, high repetition-rate, green-pumped, picosecond LBO optical parametric oscillator. Optics Express, 20 (7), 7008-7014. (doi:10.1364/OE.20.007008).

Jung, Y., Alam, S.-U., Li, Z., Dhar, A., Giles, D., Giles, I., Sahu, J.K., Grüner-Nielsen, L., Poletti, F. and Richardson, D.J. (2011) First demonstration of multimode amplifier for spatial division multiplexed transmission systems. ECOC 2011: the 37th European Conference and Exhibition on Optical Communication, , Geneva, Switzerland. 18 - 24 Sep 2011. 3 pp .

Shi, Jindan, Alam, Shaif-ul and Ibsen, Morten (2012) Sub-watt threshold, kilohertz-linewidth Raman distributed-feedback fiber laser. Optics Letters, 37 (9), 1544-1546. (doi:10.1364/OL.37.001544).

Kienle, Florian, Chen, Kang Kang, Alam, S.-U., Gawith, C.B.E., Mackenzie, J.I., Hanna, D.C., Richardson, D.J. and Shepherd, D.P. (2010) A picosecond optical parametric oscillator synchronously pumped by an amplified gain-switched laser diode. Conference on Lasers and Electrooptics/Quantum Electronics and Laser Science (CLEO/QELS) 2010, San Jose, United States. 15 - 20 May 2010.

Horak, P., Chen, K.K., Alam, S.-U., Dasgupta, S. and Richardson, D.J. (2010) High-power supercontinuum generation with picosecond pulses. ICTON 2010: 12th International Conference on Transparent Optical Networks, , Munich, Germany. 27 Jun - 01 Jul 2010.

Lim, Ee-Leong, Alam, Shaif-ul and Richardson, David J. (2012) Optimizing the pumping configuration for the power scaling of in-band pumped erbium doped fiber amplifiers. Optics Express, 20 (13), 13886-13895. (doi:10.1364/OE.20.013886).

Lim, Ee-Leong, Alam, Shaif-ul and Richardson, David J. (2011) The multipeak phenomena and nonlinear effects in q-switched fiber lasers. IEEE Photonics Technology Letters, 23 (23), 1763-1765. (doi:10.1109/LPT.2011.2169395).

Lin, Dejiao, Alam, Shaif-ul, Shen, Yonghang, Chen, Tao, Wu, Bo and Richardson, David J. (2012) Large aperture PPMgLN based high-power optical parametric oscillator at 3.8 µm pumped by a nanosecond linearly polarized fiber MOPA. Optics Express, 20 (14), 15008-15014. (doi:10.1364/OE.20.015008).

Shi, J.D., Alam, S.-U. and Ibsen, M. (2011) High power, low threshold, Raman DFB fibre lasers. Quantum Electronics Conference/Conference on Lasers and Electro-Optics (IQEC/CLEO) Pacific Rim, Sydney, Australia. 28 Aug - 02 Sep 2011.

Malinowski, Andrew, Lin, Dejiao, Alam, Shaif-ul, Zhang, Zhaowei, Ibsen, Morten, Richardson, David J., Young, John, Wright, Paul, Ozanyan, Krikor, Stringer, Mark and Miles, Bob (2011) Fiber MOPA based tunable source for terahertz spectroscopy. Quantum Electronics and Laser Science Conference (QELS), , Baltimore, United States. 01 - 06 May 2011. 2 pp .

Alam, Shaif-ul, Lin, Dejiao, Teh, Peh Siong, Chen, Kang Kang and Richardson, David J. (2011) A fiber based synchronously pumped tunable Raman laser in the NIR. European Conference on Lasers and Electro-Optics, , Munich, Germany. 22 - 26 May 2011.

Austin, Ed, Zhang, Qian, Alam, Shaif-ul, Zervas, Michalis, Slavík, Radan, Petropoulos, Periklis, Nash, Phil and Richardson, David J. (2011) 500km remote interrogation of optical sensor arrays. 21st International Conference on Optical Fiber Sensors, Ottawa, Canada. 14 - 18 May 2011. 77532M . (doi:10.1117/12.886078).

Lim, Ee-Leong, Alam, Shaif-ul and Richardson, David J. (2012) High-energy, in-band pumped erbium doped fiber amplifiers. Optics Express, 20 (17), 18803-18818. (doi:10.1364/OE.20.018803).

Kang, Qiongyue, Lim, Ee Leong, Jung, Yongmin, Sahu, Jayanta K., Poletti, Francesco, Baskiotis, Catherine, Alam, Shaif-Ul and Richardson, David J. (2012) Accurate modal gain control in a multimode erbium doped fiber amplifier incorporating ring doping and a simple LP_01 pump configuration. Optics Express, 20 (19), 20835-20843. (doi:10.1364/OE.20.020835).

Kienle, Florian, Teh, P.S., Alam, S.-U., Gawith, C.B.E., Hanna, D.C., Richardson, D.J. and Shepherd, D.P. (2011) High pulse energy picosecond MgO:PPLN optical parametric oscillator using a single-mode fiber for signal feedback. ASSP 2011: Advanced Solid-State Photonics, Istanbul, Turkey. 13 - 16 Feb 2011.

Malinowski, A., Lin, Dejiao, Alam, S.U., Zhang, Z., Ibsen, M., Young, J., Wright, P., Ozanyan, K., Stringer, M., Miles, R.E. and Richardson, D.J. (2012) Fiber MOPA based tunable source for terahertz spectroscopy. Laser Physics Letters, 9 (5), 350-354. (doi:10.7452/lapl.201110143).

Sleiffer, V.A.J.M., Jung, Y., Veljanovski, V., van Uden, R.G.H., Kuschnerov, M., Chen, H., Inan, B., Grüner-Nielsen, L., Sun, Y., Richardson, D.J., Alam, S.U., Poletti, F., Sahu, J.K., Dhar, A., Koonen, A.M.J., Corbett, B., Winfield, R., Ellis, A.D. and de Waardt, H. (2012) 73.7 Tb/s (96 x 3 x 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA. Optics Express, 20 (26), B428-B438. (doi:10.1364/OE.20.00B428).

Feng, Xian, Shi, Jindan, Huang, Chung-Che, Horak, Peter, Teh, Peh Siong, Alam, Shaif-Ul, Ibsen, Morten and Loh, Wei H. (2012) Laser-induced crystalline optical waveguide in glass fiber format. Optics Express, 20 (26), B85-B93. (doi:10.1364/OE.20.000B85).

Head, Christopher Robin, Chan, Ho-Yin, Feehan, James S., Shepherd, David P., Alam, Shaif-ul, Tropper, Anne C., Price, Jonathan H.V. and Wilcox, Keith G. (2013) Supercontinuum generation with GHz repetition rate femtosecond-pulse fiber-amplified VECSELs. IEEE Photonics Technology Letters, 25 (5), 464-467. (doi:10.1109/LPT.2013.2241420).

Li, Z., Heidt, A., Daniel, J.M.O., Jung, Y., Alam, S.U. and Richardson, D.J. (2013) Thulium-doped fiber amplifier for optical communications at 2µm. Optics Express, 21 (8), 9289-9297. (doi:10.1364/OE.21.009289).

Shi, Jindan, Alam, Shaif-ul and Ibsen, Morten (2013) Ultrawide-range four-wave mixing in Raman distributed-feedback fiber lasers. Optics Letters, 38 (6), 944-946. (doi:10.1364/OL.38.000944). (PMID:23503268)

Jung, Y., Kang, Qiongyue, Sleiffer, V.A.J.M., Inan, B., Kuschnerov, M., Veljanovski, V., Corbett, B., Winfield, R., Li, Z., Teh, P.S., Dhar, A., Sahu, J.K., Poletti, F., Alam, S.-U. and Richardson, D.J. (2013) Three mode Er³⁺ ring-doped fiber amplifier for mode-division multiplexed transmission. Optics Express, 21 (8), 10383-10392. (doi:10.1364/OE.21.010383).

Lin, D., Alam, S.U., Malinowski, A., Chen, K.K., Hayes, J.R., Flanagan, J.C., Geddes, V., Nilsson, J., Ingram, S., Norman, S. and Richardson, D.J. (2011) Temporally and spatially shaped fully-fiberized ytterbium-doped pulsed MOPA. Laser Physics Letters, 8 (10), 747-753. (doi:10.1002/lapl.201110057).

Heidt, A.M., Li, Z., Sahu, J., Shardlow, P.C., Becker, M., Rothhardt, M., Ibsen, M., Phelan, R., Kelly, B., Alam, S.U. and Richardson, D.J. (2013) 100kW peak power picosecond thulium-doped fiber amplifier system seeded by a gain-switched diode laser at 2µm. Optics Letters, 38 (10), 1615-1617. (doi:10.1364/OL.38.001615).

Harun, S.W., Ahmad, H., Lim, E.L., Alam, S.U. and Richardson, D.J. (2010) Single mode erbium ytterbium-doped fiber laser with multimode pumping. Journal of Nonlinear Optical Physics and Materials, 19 (2), 203-208. (doi:10.1142/S0218863510005212).

Teh, Peh Siong, Lewis, Richard J., Alam, Shaif-ul and Richardson, David J. (2013) 200W diffraction limited, single-polarization, all-fiber picosecond MOPA. Optics Express, 21 (22), 25883-25889. (doi:10.1364/OE.21.025883).

Li, Z., Heidt, A.M., Simakov, N., Jung, Y., Daniel, J.M.O., Alam, S.U. and Richardson, D.J. (2013) Diode-pumped wideband thulium-doped fiber amplifiers for optical communications in the 1800 - 2050 nm window. Optics Express, 21 (22), 26450-26455. (doi:10.1364/OE.21.026450).

Jung, Y., Chen, R., Ismaeel, R., Brambilla, G., Alam, S.-U., Giles, I.P. and Richardson, D.J. (2013) Dual mode fused optical fiber couplers suitable for mode division multiplexed transmission. Optics Express, 21 (20), 24326-24331. (doi:10.1364/OE.21.024326).

Heidt, A.M., Price, J.H.V., Baskiotis, C., Feehan, J.S., Li, Z., Alam, S.U. and Richardson, D.J. (2013) Mid-infrared ZBLAN fiber supercontinuum source using picosecond diode-pumping at 2 µm. Optics Express, 21 (20), 24281. (doi:10.1364/OE.21.024281). (PMID:24104337)

Petrovich, M.N., Poletti, F., Wooler, J.P., Heidt, A.M., Baddela, N.K., Li, Zhihong, Gray, D.R., Slavík, R., Parmigiani, F., Wheeler, N.V., Hayes, John, Numkam Fokoua, Eric, Grüner-Nielsen, L., Pálsdóttir, B., Phelan, R., Kelly, B., O'Carroll, J., Becker, M., MacSuibhne, N., Zhao, J., Garcia Gunning, F.C., Ellis, A.D., Petropoulos, P., Alam, S.U. and Richardson, D.J. (2013) Demonstration of amplified data transmission at 2 µm in a low-loss wide bandwidth hollow core photonic bandgap fiber. Optics Express, 21 (23), 28559-28569. (doi:10.1364/OE.21.028559).

Shi, J., Horak, P., Alam, S.-U. and Ibsen, M. (2013) Raman-DFB fibre laser enabled FWM in passive optical fibres. International Conference on Photorefractive Effects Materials and Devices (PR'13), , Winchester, United Kingdom. 04 - 06 Sep 2013. 1 pp .

Richardson, D.J., Wheeler, N.V., Baddela, N.K., Hayes, J.R., Chen, Yong, Numkam Fokoua, Eric, Sandoghchi, Seyed Reza, Gray, D., Wooler, J.P., Jung, Y., Alam, S.-U., Sleiffer, V.A.J.M., Kuschnerov, M., Petrovich, M.N. and Poletti, F. (2013) Advances in photonic bandgap fiber technology for optical communications. EXAT Symposium 2013, Hokkaido, Japan. 07 - 08 Nov 2013.

Sleiffer, V.A.J.M., Chen, H., Jung, Y., Leoni, P., Kuschnerov, M., Simperler, A., Fabian, H., Schuh, H., Kub, F., Richardson, D.J., Alam, S.U., Grüner-Nielsen, L., Sun, Y., Koonen, A.M.J. and de Waardt, H. (2013) Field demonstration of mode-division multiplexing upgrade scenarios on commercial networks. Optics Express, 21 (25), 31036-31046. (doi:10.1364/OE.21.031036).

Sleiffer, V.A.J.M., Chen, H., Jung, Y., Kuschnerov, M., Richardson, D.J., Alam, S.U., Sun, Y., Grüner-Nielsen, L., Pavarelli, N., Snyder, B., Brien, P.O., Ellis, A.D., Koonen, A.M.J. and de Waardt, H. (2013) 480km transmission of MDM 576-Gb/s 8QAM using a few-mode re-circulating loop. IEEE Photonics Conference 2013 (IPC), Washington, United States. 07 - 11 Sep 2013.

Sleiffer, Vincent, Jung, Yongmin, Baddela, Naveen, Surof, Janis, Kuschnerov, Maxim, Veljanovski, Vladimir, Hayes, John, Wheeler, Natalie, Numkam Fokoua, Eric, Wooler, John, Gray, David, Wong, Nicholas, Parmigiani, Francesca, Alam, Shaif-ul, Petrovich, Marco, Poletti, Francesco, Richardson, David and de Waardt, Huug (2014) High capacity mode-division multiplexed optical transmission in a novel 37-cell hollow-core photonic bandgap fiber. Journal of Lightwave Technology, 32 (4), 854-863. (doi:10.1109/JLT.2013.2274194).

Webb, A.S., Boyland, A.J., Standish, R.J., Lin, Dejiao, Alam, S.-U. and Sahu, J.K. (2010) In-situ solution doping technique for novel geometry rare-earth doped fiber fabrication. CLEO/QELS 2010, , San Jose, United States. 16 - 21 May 2010.

Alam, S.-U., Chen, Kang Kang, Hayes, J.R., Lin, Dejiao, Malinowski, A., Baker, H.J., Trela, N., McBride, R. and Richardson, D.J. (2010) Over 55W of frequency doubled light at 530nm pumped by an all-fiber diffraction limited picosecond fibre MOPA. Photonics West 2010, , San Francisco, United States. 23 - 28 Jan 2010.

Lin, Dejiao, Teh, Peh Siong, Alam, S.-U., Chen, K.K. and Richardson, D.J. (2011) Simultaneous excitation of selective multiple Raman Stokes wavelengths (green-yellow-red) using shaped multi-step pulses from an all-fibre MOPA system. Photonics West 2011, San Francisco, United States. 22 - 27 Jan 2011.

Sleiffer, V.A.J.M., Leoni, P., Jung, Y., Surof, J., Kuschnerov, M., Veljanovski, V., Richardson, D.J., Alam, S.-U., Grüner-Nielsen, L., Sun, Y., Corbett, B., Winfield, R., Calabrò, S., Sommerkorn-Krombholz, B., von Kirchbauer, H. and de Waardt, H. (2013) 20x960 Gb/s MDM-DP-32QAM transmission over 60km FMF with inline MM-EDFA. 39th European Conference and Exhibition on Optical Communication (ECOC 2013), , London, United Kingdom. 23 - 26 Sep 2013.

Lewis, R.J., Lim, E.L., Rowe, D.J., Alam, S.-U., Nilsson, J., Baik, C.-W., Gurel, O., Wilkinson, J.S. and Richardson, D.J. (2013) High-resolution broadly-tunable MOPA-based terahertz spectrometer to non-destructively probe and modulate protein electrodynamics. IRMMW-THz 2013: The Joint 38th International Conference on Infrared & Millimetre Waves and 21st International Conference on Terahertz Electronics, Mainz, Germany. 31 Aug - 05 Sep 2013. (doi:10.1109/IRMMW-THz.2013.6665817).

Grüner-Nielsen, L., Dasgupta, S., Mermelstein, M.D., Jakobsen, D., Herstrøm, S., Pederson, M.E.V., Lim, Ee Leong, Alam, S.-U., Parmigiani, F., Richardson, D.J. and Pálsdóttir, B. (2010) A silica based highly nonlinear fibre with improved threshold for stimulated Brillouin scattering. European Conference on Optical Communication (ECOC), , Torino, Italy. 19 - 23 Sep 2010. (doi:10.1109/ECOC.2010.5621232).

Shepherd, D.P., Kienle, F., Teh, P.S., Alam, S.-U., Chen, K.K., Lin, D., Price, J.H.V., Mackenzie, J.I., Gawith, C.B.E., Hanna, D.C. and Richardson, D.J. (2013) Fibre-laser pumped picosecond optical parametric oscillators. SU2P Annual Symposium, Glasgow, United Kingdom. 14 - 15 Apr 2013.

Jung, Y., Kang, Qiongyue, Sahu, J.K., Corbett, B., Winfield, R., Poletti, F., Alam, S.U. and Richardson, D.J. (2013) Few-mode EDFA supporting 5 spatial modes with reconfigurable differential modal gain control. European Conference on Optical Communication (ECOC), , London, United Kingdom. 22 - 26 Sep 2013.

Li, Z., Alam, S.U., Jung, Y., Heidt, A.M. and Richardson, D.J. (2013) All-fiber, ultra-wideband tunable laser at 2µm. Optics Letters, 38 (22), 4739-4742. (doi:10.1364/OL.38.004739).

Sleiffer, V.A.J.M., Leoni, P., Jung, Y., Surof, J., Kuschnerov, M., Veljanovski, V., Alam, S.U., Richardson, D.J., Grüner-Nielsen, L., Sun, Y., Corbett, B., Winfield, R., Calabrò, S. and de Waardt, H. (2014) 20 × 960-Gb/s Space-division-multiplexed 32QAM transmission over 60 km few-mode fiber. Optics Express, 22 (1), 749-755. (doi:10.1364/OE.22.000749).

Sleiffer, V.A.J.M., Jung, Y., Kuschnerov, M., Alam, S.U., Richardson, D.J., Grüner-Nielsen, L., Sun, Y. and de Waardt, H. (2014) Optical chopper-based re-circulating loop for few-mode fiber transmission. Optics Letters, 39 (5), 1181-1184. (doi:10.1364/OL.39.001181).

Jung, Y., Li, Z., Wong, N.H.L., Daniel, J.M.O., Sahu, J.K., Alam, S.U. and Richardson, D.J. (2014) Spatial mode switchable, wavelength tunable erbium doped fiber laser incorporating a spatial light modulator. OFC'14, , San Francisco, United States. 09 - 13 Mar 2014. 3 pp .

Sleiffer, V.A.J.M., Leoni, P., Jung, Y., Chen, H., Kuschnerov, M., Alam, S.U., Petrovich, M., Poletti, F., Wheeler, N.V., Baddela, N.K., Hayes, J., Numkam Fokoua, Eric, Richardson, D.J., Grüner-Nielsen, L.E., Sun, Y. and de Waardt, H. (2014) Ultra-high capacity transmission with few-mode silica and hollow-core photonic bandgap fibers. OFC'14, , San Francisco, United States. 09 - 13 Mar 2014. 3 pp .

Lim, E.L., Jung, Y., Kang, Q., May-Smith, T.C., Wong, N.H.L., Standish, R.J., Poletti, F., Sahu, J.K., Alam, S.U. and Richardson, D.J. (2014) First demonstration of cladding pumped few-moded EDFA for mode division multiplexed transmission. OFC'14, , San Francisco, United States. 09 - 13 Mar 2014. 3 pp .

Petrovich, M.N., Poletti, F., Wooler, J.P., Heidt, A.M., Baddela, N.K., Li, Zhihong, Gray, D.R., Slavík, R., Parmigiani, F., Wheeler, N.V., Hayes, J.R., Numkam Fokoua, Eric, Grüner-Nielsen, L., Pálsdóttir, B., Phelan, R., Kelly, B., Becker, M., MacSuibhne, N., Zhao, J., Garcia Gunning, F.C., Ellis, A.D., Petropoulos, P., Alam, S.U. and Richardson, D.J. (2012) First demonstration of 2 micron data transmission in a low-loss hollow core photonic bandgap fiber. European Conference on Optical Communication (ECOC), Amsterdam, Netherlands. 15 - 20 Sep 2012. (doi:10.1364/ECEOC.2012.Th.3.A.5).

Poletti, Francesco, Wheeler, Natalie, Baddela, Naveen, Jung, Y., Wooler, J.P., Gray, D.R., Numkam Fokoua, Eric, Hayes, J.R., Slavík, R., Alam, S.-U., Sandoghchi, Seyed Reza, Sleiffer, V.A.J.M., Kuschnerov, M., Petrovich, M.N. and Richardson, D.J. (2013) Recent advances in photonic bandgap fiber technology. IEEE: Summer Topicals, Waikoloa Village, United States. 08 - 10 Jul 2013. (doi:10.1109/PHOSST.2013.6614513).

Jung, Y., Sleiffer, V.A.J.M., Baddela, N., Petrovich, M.N., Hayes, J.R., Wheeler, N.V., Gray, D.R., Numkam Fokoua, Eric, Wooler, J.P., Wong, N.H.L., Parmigiani, F., Alam, S.-U., Surof, J., Kuschnerov, M., Veljanovski, V., de Waardt, H., Poletti, F. and Richardson, D.J. (2013) First demonstration of a broadband 37-cell hollow core photonic bandgap fiber and its application to high capacity mode division multiplexing. OFC 2013: Conference on Optical Fibre Communications, Anaheim, United States. 17 - 21 Mar 2013. (doi:10.1364/OFC.2013.PDP5A.3).

Poletti, F., Wooler, J.P., Wheeler, N.V., Baddela, N.K., Gray, D.R., Numkam Fokoua, Eric, Hayes, J.R., Jung, Y., Alam, S.-U., Sandoghchi, Seyed Reza, Sleiffer, V.A.J.M., Kuschnerov, M., Petrovich, M.N. and Richardson, D.J. (2013) Transmitting data inside a hole: recent advances in hollow core photonic bandgap technology. Workshop on Speciality Optical Fibers and their Applications (WSOF 2013), , Sigtuna Kommun, Sweden. 28 - 30 Aug 2013.

Sleiffer, V.A.J.M., Jung, Y., Leoni, P., Kuschnerov, M., Veljanovski, V., Wheeler, N.V., Baddela, N., Hayes, J.R., Wooler, J.P., Numkam Fokoua, Eric, Slavík, R., Poletti, F., Petrovich, M.N., Alam, S.-U., Richardson, D.J. and de Waardt, H. (2013) A first glance at coherent optical transmission using photonic bandgap fiber as a transmission medium. IEEE Summer Topicals, Waikoloa, United States. 07 - 09 Jul 2013. (doi:10.1109/PHOSST.2013.6614548).

Heidt, A.M., Li, Z., Sahu, J.K., Shardlow, P.C., Becker, M., Rothhardt, M., Ibsen, M., Phelan, R., Kelly, B., Alam, S.-U. and Richardson, D.J. (2013) 35 kW peak power picosecond pulsed thulium-doped fibre amplifier system seeded by a gain-switched laser diode at 2 microns. CLEO-Europe/IQEC 2013, , Munich, Germany. 12 - 16 May 2013. 1 pp .

Heidt, A.M., Price, J.H.V., Baskiotis, C., Li, Z., Alam, S.-U. and Richardson, D.J. (2013) Ultraflat mid-IR supercontinuum pumped by a 100 kW diode-seeded picosecond fiber amplifier system at 2 microns. Frontiers in Optics (FiO/LS) 2013, , Orlando, United States. 06 - 10 Oct 2013.

Li, Z., Heidt, A.M., Daniel, J.M.O., Jung, Y., Alam, S.U. and Richardson, D.J. (2013) Thulium-doped fiber amplifier for optical communications at 2 microns. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013. (doi:10.1364/OFC.2013.OTh4C.1).

Alam, S.-U., Li, Z., Daniel, J.M.O., Jung, Y., Heidt, A.M. and Richardson, D.J. (2013) Thulium doped fiber amplifiers for 2 micron telecommunications. The 10th Conference on Lasers and Electro-Optics Pacific Rim and The 18th OptoElectronics and Communications Conference (CLEO-Pacific Rim/OECC 2013), Kyoto, Japan. 29 Jun - 03 Jul 2013.

Jung, Y., Kang, Q., Sahu, J.K., Corbett, B., O'Callaghan, J., Poletti, F., Alam, S.U. and Richardson, D.J. (2014) Reconfigurable modal gain control of a few-mode EDFA supporting six spatial modes. IEEE Photonics Technology Letters, 26 (11), 1100-1103. (doi:10.1109/LPT.2014.2315500).

Jung, Y., Shardlow, P.C., Belal, M., Li, Z., Heidt, A.M., Daniel, J.M.O., Jain, D., Sahu, J.K, Clarkson, W.A., Corbett, B., O'Callaghan, J., Alam, S.U. and Richardson, D.J. (2014) First demonstration of a 2µm few-mode TDFA for mode division multiplexing. Optics Express, 22 (9), 10544-10549. (doi:10.1364/OE.22.010544).

Richardson, D.J., Alam, S.-U., Price, J.H.V., Teh, P.C., Lin, D., Malinowski, A., Heidt, A., Poletti, F., Kienle, F. and Shepherd, D.P. (2013) Fiber laser pumped sources for the Mid-IR. US/UK Workshop on Mid-Infrared to Terahertz Technology and Applications, Edinburgh, United Kingdom. 18 - 19 Feb 2013.

Teh, P.S., Chan, Ho-Yin, Lewis, R.J., Alam, S.-U., Shepherd, D.P. and Richardson, D.J. (2013) 200W gain-switched-diode-seeded single-polarization narrow linewidth all-fiber picosecond MOPA. CLEO/QELS 2013, , San Jose, United States. 09 - 14 Jun 2013. 2 pp .

Belal, Mohammad, Petrovich, Marco, Wheeler, Natalie, Wooler, John, Masoudi, Ali, Poletti, Francesco, Alam, Shaif-ul, Richardson, David and Newson, Trevor P. (2014) First demonstration of a 2µm OTDR and its use in photonic bandgap CO2 sensing fiber. IEEE Photonics Technology Letters, 26 (9), 889-892. (doi:10.1109/LPT.2014.2309496).

Baskiotis, C., Heidt, A.M., Alam, S.-U. and Richardson, D.J. (2013) LMA effectively single-mode thulium doped fibre with normal dispersion at wavelengths around 2 µm. CLEO-Europe/IQEC 2013, , Munich, Germany. 12 - 16 May 2013. 1 pp . (doi:10.1109/CLEOE-IQEC.2013.6801302).

Shi, J.D., Alam, S.-U. and Ibsen, M. (2013) Ultra-broadband wavelength conversion based on four-wave mixing in a Raman DFB fiber laser. OFC '13: Conference on Optical Fibre Communications, , Anaheim, United States. 17 - 21 Mar 2013. 3 pp .

Li, Z., Heidt, A.M., Teh, P.S., Berendt, M., Sahu, J.K., Phelan, R., Kelly, B., Alam, S.U. and Richardson, D.J. (2014) High-energy diode-seeded nanosecond 2µm fiber MOPA systems incorporating active pulse shaping. Optics Letters, 39 (6), 1569-1572. (doi:10.1364/OL.39.001569).

Teh, Peh Siong, Alam, Shaif-ul, Shepherd, David P. and Richardson, David J. (2014) Generation of mode-locked optical pulses at 1035 nm from a fiber Bragg grating stabilized semiconductor laser diode. Optics Express, 22 (11), 13366-13376. (doi:10.1364/OE.22.013366).

Chan, Ho-Yin, Xu, L., Bateman, J., Alam, S.U., Richardson, D.J. and Shepherd, D.P. (2014) 16-µJ pulse energy, picosecond, narrow-linewidth master oscillator power amplifier using direct amplification. CLEO '14, , San Jose, United States. 07 - 12 Jun 2014.

Kang, Qiongyue, Lim, Ee Leong, Poletti, Francesco, Jung, Yongmin, Alam, Shaif-ul and Richardson, D.J. (2014) Minimizing differential modal gain in cladding pumped MM-EDFAs for mode division multiplexing in C and L Bands. OSA topical Meeting-Fiber-Based Technologies and Applications (part of the International Photonics and Optoelectronics Meetings, POEM), Wuhan, China. 18 Jun 2014.

Inan, B., Jung, Y., Sleiffer, V.A.J.M., Kuschnerov, M., Grüner-Nielsen, L., Adhikari, S., Jansen, S.L., Richardson, D.J., Alam, S.-U., Spinnler, B. and Hanik, N. (2013) Low computational complexity mode division multiplexed OFDM transmission over 130 km of few mode fiber. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013. 3 pp .

Poletti, F., Petrovich, M.N., Wheeler, N.V., Baddela, N.K., Numkam Fokoua, Eric, Wooler, J.P., Gray, David R., Sandoghchi, Seyed Reza, Hayes, J.R., Jung, Y., Slavík, R., Alam, S.-U., Sleiffer, V.A.J.M., Kuschnerov, M. and Richardson, D.J. (2013) Hollow core fibres for high capacity data transmission. CLEO-Pacific Rim/OECC 2013: OECC 2013, , Kyoto, Japan. 30 Jun - 04 Jul 2013.

Sleiffer, V.A.J.M., Jung, Y., Leoni, P., Kuschnerov, M., van Uden, R.G.H., Veljanovski, V., Grüner-Nielsen, L., Sun, Y., Richardson, D.J., Alam, S.-U., Poletti, F., Corbett, B., Winfield, R. and de Waardt, H. (2013) High capacity multi-mode transmission systems using higher-order modulation formats. CLEO-Pacific Rim/OECC 2013: OECC 2013, , Kyoto, Japan. 30 Jun - 04 Jul 2013. 2 pp .

Head, C.Robin, Chan, Ho-Yin, Feehan, James S., Shepherd, David P., Alam, Shaif-ul, Tropper, Anne C., Price, Jonathan H.V. and Wilcox, Keith G. (2013) Supercontinuum generation with femtosecond pulse fiber amplified VECSELs. Hastie, Jennifer E. (ed.) Vertical External Cavity Surface Emitting Lasers (VECSELs) III, San Francisco, United States. p. 860608 . (doi:10.1117/12.2004240).

Teh, Peh Siong, Alam, Shaif-ul, Chan, Ho-Yin, Shepherd, David P. and Richardson, David J. (2013) Generation of transform-limited picosecond pulses at 1.0 µm from a gain switched semiconductor laser diode. In 2013 IEEE 4th International Conference on Photonics (ICP). IEEE. pp. 240-243 . (doi:10.1109/ICP.2013.6687126).

Kienle, Florian, Alam, S.-U., Teh, P.S., Lin, Dejiao, Price, J.H.V., Hanna, D.C., Richardson, D.J. and Shepherd, D.P. (2012) High power high repetition rate picosecond optical parametric oscillator pumped by frequency doubled all-fiber Yb-doped MOPA. SPIE Photonics Europe 2012, , Brussels, Belgium. 16 - 19 Apr 2012. (doi:10.1117/12.922852).

Kang, Qiongyue, Lim, Ee Leong, Poletti, Francesco, Jung, Yongmin, Baskiotis, Catherine, Alam, Shaif-ul and Richardson, David J. (2014) Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups. Optics Express, 22 (18), 21499-21507. (doi:10.1364/OE.22.021499).

MacSuibhne, N., Li, Zhihong, Baeuerle, B., Zhao, Junwei, Wooler, J.P., Alam, S.U., Poletti, F., Petrovich, M.N., Heidt, A.M., Wheeler, N.V., Baddela, N.K., Numkam Fokoua, Eric, Giles, I.P., Giles, D.J., Phelan, R., O'Carroll, J., Kelly, B., Murphy, D., Corbett, B., Ellis, A.D., Garcia Gunning, F.C. and Richardson, D.J. (2013) WDM transmission at 2 microns over low-loss hollow core photonic bandgap fiber. OFC '13, Los Angeles, United States. 17 - 21 Mar 2013.

Jung, Y., Shardlow, P.C., Belal, M., Li, Z., Heidt, A.M., Daniel, J.M.O., Jain, D., Sahu, J.K., Clarkson, W.A., Corbett, B., O'Callaghan, J., Alam, S.-U. and Richardson, D.J. (2014) Few-mode TDFA for mode division multiplexing at 2µm. IEEE Summer Topical Meeting, , Montréal, Canada. 14 - 16 Jul 2014. (doi:10.1109/SUM.2014.85).

Sleiffer, V.A.J.M., Chen, H., Jung, Y., Leoni, P., Kuschnerov, M., Fabian, J., Schuh, J., Kub, F., Richardson, D.J., Alam, S-U., Nielsen, G., Sun, Y., Ellis, A., Koonen, T. and de Waardt, H. (2014) A field trial of mode-division multiplexing. IEEE Summer Topical Meeting, , Montréal, Canada. 14 - 16 Jul 2014. (doi:10.1109/SUM.2014.107).

Chan, Ho-Yin, Alam, Shaif-ul, Xu, Lin, Bateman, James, Richardson, David J. and Shepherd, David P. (2014) Compact, high-pulse-energy, high-power, picosecond master oscillator power amplifier. Optics Express, 22 (18), 21938-21943. (doi:10.1364/OE.22.021938).

Kang, Q., Lim, E.L., Jung, Y., Jin, X., Payne, F.P., Alam, S.U. and Richardson, D.J. (2014) Gain equalization of a six-mode-group ring core multimode EDFA. European Conference on Optical Communications (ECOC), , Cannes, France. 21 - 25 Sep 2014.

Jung, Y., Jain, S., May-Smith, T., Sahu, J.K., Alam, S.-U. and Richardson, D.J. (2014) Few-mode multi-element fiber amplifier for mode division multiplexing. European Conference on Optical Communications (ECOC), , Cannes, France. 21 - 25 Sep 2014.

Jung, Y., Lim, E.L., Kang, Q., May-Smith, T.C., Wong, N.H.L., Standish, R., Poletti, F., Sahu, J.K., Alam, S.U. and Richardson, D.J. (2014) Cladding pumped few-mode EDFA for mode division multiplexed transmission. Optics Express, 22 (23), 29008-29013. (doi:10.1364/OE.22.029008).

Jain, S., Jung, Y., May-Smith, T., Alam, S.U., Sahu, J.K. and Richardson, D.J. (2014) Few-mode multi-element fiber amplifier for mode division multiplexing. Optics Express, 22 (23), 29031-29036. (doi:10.1364/OE.22.029031).

Liu, Z., Li, Z., Chen, Y., Wooler, J.P., Kelly, B., Phelan, R., O'Carroll, J., Wheeler, N.V., Heidt, A., Poletti, F., Petrovich, M.N., Alam, S.U., Richardson, D.J. and Slavík, R. (2014) Up to 64QAM (30 Gbit/s) directly-modulated and directly detected OFDM at 2µm wavelength. ECOC 2014, Cannes, France. 20 - 24 Sep 2014.

Li, Z., Alam, S., Daniel, J.M.O., Shardlow, P.C., Jain, D., Simakov, N., Heidt, A.M., Jung, Y., Sahu, J.K., Clarkson, W.A. and Richardson, D.J. (2014) 90nm gain extension towards 1.7µm for diode-pumped silica-based thulium-doped fiber amplifiers. ECOC 2014 Conference, , Cannes, France. 21 - 25 Sep 2014.

Liu, Z., Li, Z., Chen, Yong, Kelly, B., Phelan, R., O'Carroll, J., Wooler, J.P., Wheeler, N.V., Heidt, A.M., Richter, T., Schubert, C., Becker, M., Poletti, F., Petrovich, M.N., Alam, S.U., Richardson, D.J. and Slavík, R. (2015) 52.6 Gbit/s single-channel directly-modulated optical transmitter for 2-µm spectral region. Optical Fiber Communication Conference 2015, , Los Angeles, United States. 22 - 26 Mar 2015. (doi:10.1364/OFC.2015.Th1E.6).

Liu, Zhixin, Chen, Yong, Li, Zhihong, Kelly, Brian, Phelan, Richard, O'Carroll, John, Bradley, Tom, Wooler, John, Wheeler, Natalie V., Heidt, Alexander, Richter, Thomas, Schubert, Colja, Becker, Martin, Poletti, Francesco, Petrovich, Marco N., Alam, Shaif-ul, Richardson, David J. and Slavík, Radan (2015) High-capacity directly modulated optical transmitter for 2µm spectral region. Journal of Lightwave Technology, 33 (7), 1373-1379. (doi:10.1109/JLT.2015.2397700).

Jain, D., Jung, Y., Barua, P., Alam, S. and Sahu, J.K. (2015) Scaling the mode area of Rare-Earth doped step index fiber under current state of the art MCVD technology. CLEO-2015, , San Jose, United States. 10 - 15 May 2015. 2 pp .

Jain, Deepak, Jung, Yongmin, Barua, Pranabesh, Alam, Shaif-ul and Sahu, Jayanta K. (2015) Demonstration of ultra-low NA rare-earth doped step index fiber for applications in high power fiber lasers. Optics Express, 23 (6), 7407-7415. (doi:10.1364/OE.23.007407).

Fontaine, N.K., Haramaty, T., Ryf, R., Chen, H., Miron, L., Pascar, L., Blau, M., Frenkel, B., Wang, L., Messaddeq, Y., LaRochelle, S., Essiambre, R., Jung, Y., Kang, Q., Sahu, J.K., Alam, S.U., Richardson, D.J. and Marom, D.M. (2015) Heterogeneous space-division multiplexing and joint wavelength switching demonstration. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Feng, F., Gordon, G.S., Jin, X.Q., O'Brien, D.C., Payne, F.P., Jung, Y., Kang, Q., Sahu, J.K., Alam, S.U., Richardson, D.J. and Wilkinson, T.D. (2015) Experimental characterization of a graded-index ring-core fiber supporting 7 LP mode groups. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Jung, Y., Alam, S.U. and Richardson, D.J. (2015) All-fiber spatial mode selective filter for compensating mode dependent loss in MDM transmission systems. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Kang, Q., Gregg, P., Jung, Y., Lim, E.L., Alam, S.U., Ramachandran, S. and Richardson, D.J. (2015) Amplification of 12 OAM states in an air-core EDF. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Li, Z., Jung, Y., Daniel, J.M.O., Simakov, N., Shardlow, P.C., Heidt, A.M., Clarkson, W.A., Alam, S.U. and Richardson, D.J. (2015) Extreme short wavelength operation (1.65 - 1.7 µm) of silica-based thulium-doped fiber amplifier. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Alam, S.U., Jung, Y., Kang, Q., Poletti, F., Sahu, J.K. and Richardson, D.J. (2015) Recent progress in the development of few mode fiber amplifier. OFC'15, , Los Angeles, United States. 22 - 26 Mar 2015.

Lim, E.L. Leong, Corbari, C., Gladyshev, A.V., Alam, S.U., Ibsen, M., Richardson, D.J. and Kazansky, P.G. (2014) Multi-watt all-fiber frequency doubled laser. Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, Barcelona, Spain. 26 - 30 Jul 2014. (doi:10.1364/BGPP.2014.JTu6A.5).

Sleiffer, V.A.J.M., Jung, Y., Leoni, P., Kuschnerov, M., Wheeler, N.V., Baddela, N., van Uden, R.G.H., Okonkwo, C.M., Hayes, J.R., Wooler, J.P., Numkam Fokoua, Eric, Slavík, R., Poletti, F., Petrovich, M.N., Veljanovski, V., Alam, S.U., Richardson, D.J. and de Waardt, H. (2013) 30.7 Tb/s (96x320 Gb/s) DP-32QAM transmission over 19-cell photonic band gap fiber. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013. (doi:10.1364/OFC.2013.OW1I.5).

Kang, Qiongyue, Lim, Ee Leong, Jung, Y., Poletti, F., Alam, S.-U. and Richardson, D.J. (2013) Design of four-mode erbium doped fiber amplifier with low differential modal gain for modal division multiplexed transmission. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013.

Jung, Y., Sleiffer, V.A.J.M., Inan, B., Kuschnerov, M., Veljanovski, V., Corbett, B., Winfield, R., Kang, Qiongyue, Dhar, A., Sahu, J.K., Poletti, F., Alam, S.-U. and Richardson, D.J. (2013) Multimode EDFA performance in mode-division multiplexed transmission systems. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013.

Sleiffer, V.A.J.M., Jung, Y., Veljanovski, V., van Uden, R.G.H., Kuschnerov, M., Kang, Qiongyue, Grüner-Nielsen, L., Sun, Y., Richardson, D.J., Alam, S.U., Poletti, F., Sahu, J.K., Dhar, A., Chen, H., Inan, B., Koonen, A.M.J., Corbett, B., Winfield, R., Ellis, A.D. and de Waardt, H. (2012) 73.7 Tb/s (96X3x256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA. European Conference on Optical Communication (ECOC), , Amsterdam, Netherlands. 16 - 20 Sep 2012. 3 pp .

MacSuibhne, N., Li, Z., Baeuerle, B., Zhao, J., Wooler, J.P., Alam, S.U., Poletti, F., Petrovich, M.N., Heidt, A.M., Giles, I.P., Giles, D.J., Pálsdóttir, B., Grüner-Nielsen, L., Phelan, R., O'Carroll, J., Kelly, B., Murphy, D., Ellis, A.D., Richardson, D.J. and Garcia Gunning, F.C. (2012) Wavelength division multiplexing at 2µm. European Conference on Optical Communication (ECOC), , Amsterdam, Netherlands. 16 - 20 Sep 2012. 3 pp .

Lim, E.L., Alam, S.-U. and Richardson, D.J. (2011) Highly efficient, high power, inband-pumped Erbium/Ytterbium-codoped fiber laser. CLEO/QELS 2011, , Baltimore, United States. 01 - 06 May 2011.

Sleiffer, V.A.J.M., Jung, Y., Inan, B., Chen, H., van Uden, R.G.H., Kuschnerov, M., van den Borne, D., Jansen, S.L., Veljanovski, V., Koonen, A.M.J., Richardson, D.J., Alam, S.-U., Poletti, F., Sahu, J.K., Dhar, A., Corbett, B., Winfield, R., Ellis, A.D. and de Waardt, H. (2012) Mode-division-multiplexed 3x112-Gb/s DP-QPSK transmission over 80-km few-mode fiber with inline MM-EDFA and blind DSP. European Conference on Optical Communication (ECOC), , Amsterdam, Netherlands. 16 - 20 Sep 2012.

Kang, Qiongyue, Lim, Ee Leong, Jung, Y., Sahu, J.K., Poletti, F., Alam, S.-U. and Richardson, D.J. (2012) Modal gain control in a multimode erbium doped fiber amplifier incorporating ring doping. European Conference on Optical Communication (ECOC) 16-20 Sept, Amsterdam, Netherlands. 15 - 19 Sep 2012.

Jung, Y., Alam, S.-U., Li, Z., Teh, P.S., Dhar, A., Sahu, J.K., Poletti, F., Winfield, R.J., Ellis, A.D. and Richardson, D.J. (2012) Experimental investigation of inter-modal cross-gain modulation and transient effects in a two mode group erbium doped fiber amplifier. European Conference on Optical Communication (ECOC), , Amsterdam, Netherlands. 16 - 20 Sep 2012. (doi:10.1364/ECEOC.2012.Tu.3.F.5).

Lim, E.L., Alam, S.-U. and Richardson, D.J. (2012) High-energy, in-band, cladding-pumped erbium doped pulsed fiber lasers. CLEO/QELS 2012, , San Jose, United States. 06 - 11 May 2012. (doi:10.1364/CLEO_SI.2012.CM2N.1).

Feng, X., Shi, J.D., Huang, C.C., Teh, P.S., Alam, S.-U., Ibsen, M. and Loh, Wei H. (2012) Laser-induced crystalline optical waveguide on glass fibre. European Conference on Optical Communication (ECOC), , Amsterdam, Netherlands. 16 - 20 Sep 2012.

Shi, J.D., Alam, S.-U. and Ibsen, M. (2012) Ultra-wide range wavelength conversion using FWM in a Raman DFB fiber laser. Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (BGPP), United States. 17 - 21 Jun 2012. 2 pp .

Shi, J.D., Alam, S.-U. and Ibsen, M. (2012) Raman DFB fiber laser with truly unidirectional output. Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (BGPP), , Colorado Springs, United States. 17 - 20 Jun 2012. 2 pp . (doi:10.1364/BGPP.2012.BW3E.6).

Xu, Lin, Chan, Ho-Yin, Alam, Shaif-ul, Richardson, David J. and Shepherd, David P. (2015) High-energy, near- and mid-IR picosecond pulses generated by a fiber-MOPA-pumped optical parametric generator and amplifier. Optics Express, 23 (10), 12613-12618. (doi:10.1364/OE.23.012613).

Shi, Jindan, Horak, Peter, Alam, Shaif-ul and Ibsen, Morten (2014) Detailed study of four-wave mixing in Raman DFB fiber lasers. Optics Express, 22 (19), 22917-22924. (doi:10.1364/OE.22.022917).

Zhang, H., Kavanagh, N., Li, Z., Zhao, J., Ye, N., Chen, Yong, Wheeler, N.V., Wooler, J.P., Hayes, J.R., Sandoghchi, S.R., Poletti, F., Petrovich, M.N., Alam, S.U., Phelan, R., O'Carroll, J., Kelly, B., Grüner-Nielsen, L., Richardson, D.J., Corbett, B. and Garcia Gunning, F.C. (2015) 100 Gbit/s WDM transmission at 2 µm: transmission studies in both low-loss hollow core photonic bandgap fiber and solid core fiber. Optics Express, 23 (4), 4946-4951. (doi:10.1364/OE.23.004946).

Teh, Peh Siong, Alam, Shaif-ul, Lewis, Richard J. and Richardson, David J. (2014) Single polarization picosecond fiber MOPA power scaled to beyond 500 W. Laser Physics Letters, 11 (8), [85103]. (doi:10.1088/1612-2011/11/8/085103).

Berendt, M.O., Spurrell, J., Barua, P., Umnikov, A.A., Núñez-Velázquez, M., Sahu, J.K., Alam, S.U. and Richardson, D.J. (2015) 5mJ pulsed Yb-doped all-fiber MOPA seeded by 0.2nm spectrally sliced super luminescent diode. CLEO/Europe 2015 - European Conference on Lasers and Electro-Optics, Munich, Germany. 20 - 24 Jun 2015.

Xu, L., Chan, Ho-Yin, Alam, S.U., Richardson, David J. and Shepherd, David P. (2015) Fiber-laser-pumped, high-energy, mid-IR, picosecond optical parametric oscillator with a high-harmonic cavity. Optics Letters, 40 (14), 3288-3291. (doi:10.1364/OL.40.003288).

Wong, N.H.L., Sandoghchi, S.R., Jung, Y., Bradley, T., Wheeler, N.V., Baddela, N.K., Hayes, J.R., Poletti, F., Petrovich, M.N., Alam, S.U., Petropoulos, P. and Richardson, D.J. (2015) Inspection of defect-induced mode coupling in hollow-core photonic bandgap fibers using time-of-flight. CLEO, , San Jose, United States. 10 - 15 May 2015. 2 pp . (doi:10.1364/CLEO_SI.2015.STu1N.6).

Xu, L., Chan, H.-Y., Alam, S.U., Richardson, D.J. and Shepherd, D.P. (2015) High-energy, mid-IR pulses generated by a compact, high-harmonic-cavity, optical parametric oscillator. International Conference on Optical Instrument and Technology, Beijing, China. 16 - 18 May 2015. 1 pp .

Xu, L., Chan, H.-Y., Alam, S.U., Richardson, D.J. and Shepherd, D.P. (2015) High-energy, high-power, near- and mid-IR picosecond pulses generated by a fiber-MOPA-pumped optical parametric generator and amplifier. CLEO/Europe-EQEC '15, , Munich, Germany. 21 - 25 Jun 2015. 1 pp .

Jain, D., Jung, Y., Barua, P., Alam, S.U. and Sahu, J.K. (2015) Experimental demonstration of single-mode large mode area multi-trench fiber for UV-VIS light transmission. CLEO/Europe-EQEC '15, , Munich, Germany. 20 - 24 Jun 2015. 1 pp .

Shi, J.D., Alam, S.-U. and Ibsen, M. (2012) Single-frequency Raman distributed-feedback fiber laser. CLEO/QELS 2012, , San Jose, United States. 06 - 11 May 2012. 2 pp .

Richardson, David J., Jung, Yongmin, Kang, Qiongyue, Sahu, Jayanta, Jain, Saurabh, Li, Zhihong and Alam, Shaif-Ul (2015) Emerging fiber lasers and amplifiers for Telecoms. CLEO Europe 2015, Munich, Germany. 20 - 24 Jun 2015.

Ali, Muhammad M., Jung, Y., Lim, Kong-Sing, Islam, Md.R., Alam, Shaiful, Richardson, David J. and Ahmad, Harith (2015) Characterization of mode coupling in few-mode fiber Bragg gratings with selective mode excitation. IEEE Photonics Technology Letters, 27 (16), 1713-1716. (doi:10.1109/LPT.2015.2438177).

Alam, S.-U., Teh, P.S., Lin, Dejiao, Chen, K.K. and Richardson, D.J. (2011) Rapidly tunable, wavelength agile, visible fiber based light source exploiting Raman scattering of multi-step pulses. CLEO/QELS 2011, , Baltimore, United States. 01 - 06 May 2011.

Lin, Dejiao, Alam, S.-U., Teh, P.S., Chen, K.K. and Richardson, D.J. (2011) Synchronously pumped tunable Raman laser in the visible pumped by an all-fiber PM MOPA at 1060nm. CLEO/QELS 2011, , Baltimore, United States. 01 - 06 May 2011.

Jain, D., Alam, S., Jung, Y., Barua, P., Núñez-Velázquez, M.M. and Sahu, J. K. (2015) Highly efficient Yb-free Er-La-Al doped ultra low NA large mode area single-trench fiber laser. Optics Express, 23 (22), 28282-28287. (doi:10.1364/OE.23.028282).

Jain, Deepak, Sahu, Jayanta, Jung, Yongmin, Zervas, Michael, Alam, Shaif-Ul and Codemard, Christophe (2015) High power, compact, picosecond MOPA based on single trench fiber with single polarized diffraction-limited output. University of Southampton doi:10.5258/SOTON/382675 [Dataset]

Jain, Deepak, Sahu, Jayanta, Jung, Yongmin, Barua, Pranabesh, Alam, Shaif-Ul and Nunez Velazquez, Martin, Miguel Angel (2015) Highly efficient Yb-free Er-La-Al doped ultra low NA large mode area single-trench fiber laser. University of Southampton doi:10.5258/SOTON/382676 [Dataset]

Alam, S.-U., Jung, Y., Kang, Qiongyue, Sahu, J.K., Poletti, F. and Richardson, D.J. (2012) MM amplifier - Enabling the next generation spatial division multiplexed transmission system. 2012 IEEE 3rd International Conference on Photonics (ICP), Pulau Pinang, Malaysia. 30 Sep - 02 Oct 2012.

Alam, S.-U., Jung, Y., Li, Z., Dhar, A., Sahu, J.K., Poletti, F. and Richardson, D.J. (2012) Modal gain equalization in a few moded erbium-doped fiber amplifier. IEEE Summer Topicals 2012 - Space Division Multiplexing for optical Systems and Networks, , Seattle, United States. 09 - 11 Jul 2012.

Alam, Shaif-Ul (2015) Amplification of 12 OAM Modes in an Air-Core Erbium Doped Fiber. University of Southampton doi:10.5258/SOTON/382894 [Dataset]

Jung, Yongmin, Alam, Shaiful and Richardson, David (2015) Compact higher-order mode converter based on all-fiber phase plate segment. ECOC'15: European Conference on Optical Communication, Valencia, Spain. 26 - 30 Sep 2015.

Ryf, Roland, Fontaine, Nicolas K., Chen, Haoshuo, Gnauck, Alan, Jung, Yongmin, Kang, Qiongyue, Sahu, Jayanta, Alam, Shaiful and Richardson, David (2015) 72Tb/s transmission over 179km all-fiber 6 mode span with two cladding pumped in-line amplifiers. 41st European Conference of Optical Communication (ECOC 15) 27 Sep - 1 Oct 2015, Valencia. 26 - 30 Sep 2015.

Jung, Yongmin, Kang, Qiongyue, Sahu, Jayanta, Alam, Shaiful and Richardson, David (2015) Cladding pumped few-mode EDFAs for future high capacity systems. 41st European Conference on Optical Communication (ECOC'15), Valencia, Spain. 26 - 30 Sep 2015.

Jung, Yongmin, Kang, Qiongyue, Sahu, Jayanta, Alam, Shaiful and Richardson, David (2015) Optical amplifiers for space division multiplexed transmission. IEEE Photonics Newsletter.

Rowe, D.J., Lewis, R.J., Lim, Ee Leong, Alam, S.-U., Nilsson, J., Baik, C.-W., Gurel, O., Wilkinson, J.S. and Richardson, D.J. (2013) Terahertz spectroscopy to non-destructively probe and modulate protein electrodynamics: fundamental basis for THz medicine. Bioelectrics 2013, , Karlsruhe, Germany. 16 - 19 Sep 2013.

Belal, M., Alam, S.-U., Sahu, J.K., Richardson, D.J. and Newson, T.P. (2013) Demonstration of a 2 micron-OTDR. 39th European Conference and Exhibition on Optical Communication (ECOC 2013), , London, United Kingdom. 23 - 26 Sep 2013. (doi:10.1049/cp.2013.1331).

Li, Z., Alam, S.-U., Jung, Yongmin, Heidt, A.M. and Richardson, D.J. (2013) All-fiber ultra-wide band tunable laser source at 2 microns. European Conference on Optical Communication (ECOC), , London, United Kingdom. 22 - 26 Sep 2013.

Li, Z., Heidt, A., Alam, S.-U., Simakov, N., Jung, Y., Daniel, J. and Richardson, D.J. (2013) Diode-pumped wideband thulium-doped fiber amplifiers for optical communications in the 1800-2050 nm window. European Conference on Optical Communication (ECOC), , London, United Kingdom. 22 - 26 Sep 2013.

Jung, Yongmin, Sleiffer, V.A.J.M., Veljanovski, V., Kuschnerov, M., Alam, S.-U., de Waardt, H., Poletti, F. and Richardson, D.J. (2013) Mode division multiplexing in photonic band gap fibers. Conference on Optical Fibre Communications OFC '13, , Anaheim, United States. 17 - 23 Mar 2013.

Lim, Ee Leong, Kang, Qiongyue, Gecevičius, Mindaugas, Poletti, F., Alam, S.-U. and Richardson, D.J. (2013) Vector mode effects in few moded Erbium doped fiber amplifiers. Conference on Optical Fibre Communications OFC '13, , Los Angeles, United States. 17 - 21 Mar 2013.

Kang, Qiongyue, Jung, Yongmin, Alam, Shaiful and Richardson, David (2015) Amplification of 12 OAM Modes in an air-core erbium doped fiber. Optics Express, 23 (22), 28341-28348. (doi:10.1364/OE.23.028341). (PMID:26561104)

Lim, Ee Leong, Dasgupta, S., Kang, Qiongyue, Daniel, J.M.O., Poletti, F., Alam, S.-U. and Richardson, David J. (2013) The impact of fiber core ellipticity and modal coherency on few moded Erbium doped fiber amplifiers. European Conference on Optical Communication (ECOC), , London, United Kingdom. 22 - 26 Sep 2013.

Wong, N.H.L., Jung, Y., Sandoghchi, S., Bradley, T., Baddela, N.K., Wheeler, N.V., Hayes, J.R., Petrovich, M., Poletti, F., Alam, S., Petropoulos, P. and Richardson, D.J. (2015) Modal characterization of hollow-core photonic bandgap fibers in the time-domain. Siegman International School on Lasers: 2015, Amberg, Germany. 02 - 07 Aug 2015. 1 pp .

Ouyang, Xing, Zhang, Hongyu, Chen, Yong, Alam, Shaiful, Petrovich, Marco N., Poletti, Francesco, Richardson, David J., Garcia Gunning, Fatima C. and Zhao, Jian (2015) Experimental demonstration of improved equalization algorithm for IM/DD Fast OFDM. IEEE Photonics Technology Letters, 27 (16), 1780-1783. (doi:10.1109/LPT.2015.2443076).

Zhang, H., Gleeson, M., Ye, N., Pavarelli, N., Ouyang, X., Zhao, J., Kavanagh, N., Robert, C., Yang, H., Morrissey, P.E., Thomas, K., Gocalinska, A., Chen, Y., Bradley, T., Wooler, J.P., Hayes, J.R., Numkam Fokoua, E., Li, Z., Alam, S.U., Poletti, F., Petrovich, M.N., Richardson, D.J., Kelly, B., O'Carroll, J., Phelan, R., Pelucchi, E., O'Brien, P., Peters, F., Corbett, B. and Garcia Gunning, F.C. (2015) Dense WDM transmission at 2 µm enabled by an arrayed waveguide grating. Optics Letters, 40 (14), 3308-3311. (doi:10.1364/OL.40.003308).

Alam, Shaif-ul, Jung, Yongmin, Kang, Qiongyue, Poletti, Francesco, Sahu, Jayanta and Richardson, David (2015) Current status of few mode fiber amplifiers for spatial division multiplexed transmission. Journal of Optics, 1-10. (doi:10.1007/s12596-015-0283-4).

Jain, Deepak, Alam, Shaif-ul, Jung, Yongmin, Barua, Pranabesh, Núñez-Velázquez, Martin and Sahu, Jayanta (2016) Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser. SPIE LASE 2016, San Francisco, United States. 13 - 18 Feb 2016. (doi:10.1117/12.2211336).

Wheeler, Natalie, Chen, Yong, Hayes, John, Sandoghchi, Seyed Reza, Jasion, G., Bradley, Thomas, Numkam Fokoua, Eric, Baddela, Naveen, Gray, David, Liu, Zhixin, Jung, Yongmin, Alam, Shaif-ul, Slavík, Radan, Poletti, Francesco, Petrovich, Marco and Richardson, David J. (2016) High capacity, low latency data transmission using hollow core photonic bandgap fibers. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016. 3 pp . (doi:10.1364/OFC.2016.Th4E.1).

Feng, Feng, Guo, Xuhan, Gordon, George S., Jin, Xianqing, Payne, Frank, Jung, Yongmin, Kang, Qiongyue, Alam, Shaif-ul, Barua, Pranabesh, Sahu, Jayanta, Richardson, David, White, Ian H. and Wilkinson, Timothy D. (2016) All-optical mode-group division multiplexing over a graded-index ring-core fiber with single radial mode. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016. (doi:10.1364/OFC.2016.W3D.5).

Shi, Kai, Gomez, Ariel, Jin, Xianqing, Jung, Yongmin, Quintana, Crisanto, O'Brien, Dominic, Payne, Frank, Barua, Pranabesh, Sahu, Jayanta, Kang, Qiongyue, Alam, Shaif-ul, Richardson, David and Thomsen, Benn (2016) Simplified impulse response characterization for mode division multiplexed systems. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016.

Jung, Yongmin, Alam, Shaif-ul and Richardson, David (2016) Compact few-mode fiber collimator and associated optical components for mode division multiplexed transmission. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016.

Jung, Yongmin, Simakov, Nikita, Daniel, Jae, Jain, Deepak, Shardlow, Peter, Heidt, Alexander, Sahu, Jayanta, Hemming, A, Clarkson, William, Alam, Shaif-ul and Richardson, David (2016) Silica-based thulium doped fiber amplifiers for wavelengths beyond the L-band. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016.

Jung, Y., Kang, Q., Yoo, S., Raghuraman, S., Ho, D., Gregg, P., Ramachandran, S., Alam, S-U. and Richardson, D. (2016) Optical orbital angular momentum amplifier based on an air-core erbium doped fiber. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016.

Jung, Yongmin, Kang, Qiongyue, Alam, Shaif-ul and Richardson, David (2016) Integrated SDM amplifiers for practical deployment. Optical Fiber Communication Conference (OFC) 2016, , Anaheim, CA. 20 - 24 Mar 2016.

Jung, Yongmin, Kang, Qiongyue, Yoo, Seongwoo, Sidharthan, Raghuraman, Ho, Daryl, Ramachandran, Siddharth, Alam, Shaif-ul and Richardson, David (2017) Optical Orbital Angular Momentum Amplifier based on an Air-Hole Erbium Doped Fiber. Journal of Lightwave Technology, 1-1. (doi:10.1109/JLT.2017.2651145).

Jung, Yongmin, KANG, QIONGYUE, YOO, SEONGWOO, Sidharthan, Raghuraman, Ho, Daryl, Ramachandran, Siddharth, Alam, Shaif-Ul and Richardson, David (2017) Data for "Optical orbital angular momentum amplifier based on an air-hole erbium doped fiber". University of Southampton doi:10.5258/SOTON/396268 [Dataset]

Chen, Yong, Mulvad, Hans Christian, Sandoghchi, Seyed Reza, Numkam Fokoua, Eric, Bradley, Thomas, Hayes, John, Wheeler, Natalie, Jasion, G., Alam, Shaif-ul, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) First demonstration of low loss, bend insensitive 37-cell hollow-core photonic bandgap fiber at 1µm for high power delivery applications. In CLEO: Science and Innovations 2016. Optical Society of America. 2 pp . (doi:10.1364/CLEO_SI.2016.STu4P.1).

Wang, Junjia, Liang, Sijing, Jung, Yongmin, Kang, Qiongyue, Alam, Shaif-ul and Richardson, David (2016) Broadband silica-based thulium doped fiber amplifier employing dual-wavelength pumping. In Conference on Lasers and Electro-Optics (CLEO). IEEE.. (doi:10.1364/CLEO_SI.2016.SM1Q.2).

Li, Z., Jung, Y., Daniel, J.M.O., Simakov, N., Tokurakawa, M., Shardlow, P.C., Jain, D., Sahu, J.K., Heidt, A.M., Clarkson, W.A., Alam, S.U. and Richardson, D.J. (2016) Exploiting the short wavelength gain of silica-based thulium-doped fiber amplifiers. Optics Letters, 41 (10), 2197-2200. (doi:10.1364/OL.41.002197).

Simakov, Nikita, Li, Zhihong, Jung, Yongmin, Daniel, Jae M.O., Barua, Pranabesh, Shardlow, Peter C., Liang, Sijing, Sahu, Jayanta K., Hemming, Alexander, Clarkson, W. Andrew, Alam, Shaif-ul and Richardson, David J. (2016) High gain holmium-doped fibre amplifiers. Optics Express, 24 (13), 13946-13956. (doi:10.1364/OE.24.013946).

Sadiq, Muhammad Usman, Zhang, Hongyu, O'Callaghan, James, Roycroft, Brendan, Kavanagh, Niamh, Thomas, Kevin, Gocalinska, Agnieszka, Chen, Yong, Bradley, Thomas, Hayes, John, Li, Zhihong, Alam, Shaif-ul, Poletti, Francesco, Petrovich, Marco, Richardson, David, Pelucchi, Emanuele, O'Brien, Peter, Peters, Frank H., Garcia Gunning, Fatima C. and Corbett, Brian (2016) 40Gb/s WDM transmission over 1.15km HC-PBGF using an InP-based Mach-Zehnder modulator at 2µm. Journal of Lightwave Technology, 34 (8), 1706-1711. (doi:10.1109/JLT.2015.2508941).

Xu, Lin, Alam, Shaif-ul, Kang, Qiongyue, Shepherd, David and Richardson, David (2016) High repetition rate, high pulse energy, Raman shifted wavelength selectable fiber laser source in the visible. In Lasers Congress 2016 (ASSL, LSC, LAC). Optical Society of America. 3 pp .

Zhang, Meng, Feng, Yujun, Lin, Di, Price, Jonathan, Alam, Shaif-ul, Nilsson, Johan, Shum, Perry, Payne, David and Richardson, David (2016) Radially polarized Yb-fiber MOPA producing 10 W output using SLM based pulse shaping for efficient generation of arbitrary shaped picosecond pulses. Advanced Solid State Lasers, , Boston, United States. 29 Oct - 03 Nov 2016. 3 pp . (In Press) (doi:10.1364/ASSL.2016.ATh3A.3).

Wang, Junjia, Liang, Sijing, Jung, Yongmin, Kang, Qiongyue, Alam, Shaif-ul and Richardson, David (2016) Broadband silica-based thulium doped fiber amplifier employing multi-wavelength pumping. Optics Express, 24 (20), 23001-23008. (doi:10.1364/OE.24.023001).

Chen, Yong, Petrovich, Marco, Sandoghchi, Seyed Reza, Bradley, Thomas, Hayes, John, Wheeler, Natalie, Numkam Fokoua, Eric, Jasion, G., Mulvad, Hans Christian, Liu, Zhixin, Alam, Shaif-ul, Slavík, Radan, Poletti, Francesco and Richardson, David (2016) Recent advances in the development of high performance hollow-core photonic bandgap fibres. In 2016 18th International Conference on Transparent Optical Networks (ICTON). IEEE Xplore.. (doi:10.1109/ICTON.2016.7550278).

Xu, Lin, KANG, QIONGYUE, Alam, Shaif-Ul, Shepherd, David and Richardson, David (2017) Dataset: Raman-shifted wavelength-selectable pulsed fiber laser with high repetition rate and high pulse energy in the visible. University of Southampton doi:10.5258/SOTON/401326 [Dataset]

Jain, S., Mizuno, T., Jung, Y., Kang, Q., Hayes, J., Petrovich, M., Bai, G., Ono, H., Shibahara, K., Sano, A., Isoda, A., Miyamoto, Y., Sasaki, Y., Amma, Y., Takenagga, K., Aikawa, K., Castro, C., Pulverer, K., Nooruzzaman, Md, Torioka, T., Alam, S.U. and Richardson, D.J. (2016) 32-core inline multicore fiber amplifier for dense space division multiplexed transmission system. In ECOC 2016 : 42nd European Conference and Exhibition on Optical Communications. VDE-Verlag GmbH, Berlin. 3 pp .

Jung, Yongmin, Alam, Shaif-ul, Sasaki, Yusuke and Richardson, David J. (2016) Compact 32-core multicore fibre isolator for high-density spatial division multiplexed transmission. In ECOC 2016: 42nd European Conference on Optical Communication. VDE-Verlag GmbH, Berlin. 3 pp .

Jung, Yongmin, Kang, Qiongyue, Zhou, Hongyan, Zhang, Rui, Chen, Su, Wang, Honghai, Yang, Yucheng, Jin, Xiangqing, Payne, Frank, Alam, Shaif-ul and Richardson, David J. (2016) Low-loss 25.3km few-mode ring-core fibre for mode-division multiplexed transmission. In ECOC 2016: 42nd European Conference on Optical Communication. VDE-Verlag GmbH, Berlin. 3 pp .

Jin, Xianqing, Gomez, Ariel, Shi, Kai, Thomsen, Benn C., Feng, Feng, Gordon, George S.D., Wilkinson, Timothy D., Jung, Yongmin, Kang, Qiongyue, Barua, Pranabesh, Sahu, Jayanta, Alam, Shaif-ul, Richardson, David, O'Brien, Dominic C. and Payne, Frank P. (2016) Mode coupling effects in ring-core fibres for space-division multiplexing systems. Journal of Lightwave Technology, 34 (14), 3365-3372. (doi:10.1109/JLT.2016.2564991).

Jung, Yongmin, Kang, Qiongyue, Zhou, Hongyan, Zhang, Rui, Chen, Su, Wang, Honghai, Yang, Yucheng, Jin, Xianqing, Payne, Frank P., Alam, Shaif-ul and Richardson, David (2017) Low-loss 25.3km few-mode ring-core fiber for mode-division multiplexed transmission. Journal of Lightwave Technology, 35 (8), 1363 - 1368. (doi:10.1109/JLT.2017.2658343).

Xu, L., Alam, S., Kang, Q., Shepherd, D.P. and Richardson, D.J. (2017) Raman-shifted wavelength-selectable pulsed fiber laser with high repetition rate and high pulse energy in the visible. Optics Express, 25 (1), 351-356. (doi:10.1364/OE.25.000351).

Lin, Di, Baktash, Neda, BERENDT, MARTIN, Beresna, Martynas, Kazansky, Peter, Clarkson, William, Alam, Shaif-Ul and Richardson, David (2017) Data for Radially- and azimuthally- polarized nanosecond Yb-doped MOPA system incoporating temporal shaping. University of Southampton doi:10.5258/SOTON/403975 [Dataset]

Jung, Yongmin, KANG, QIONGYUE, Zhou, Hongyan, Zhang, Rui, Sun, Chen, Wang, Honghai, Yang, Yucheng, Jin, Xiangqing, Payne, Frank P., Alam, Shaif-Ul and Richardson, David (2017) Dataset for Low-Loss 25.3km Few-Mode Ring-Core Fiber for Mode-Division Multiplexed Transmission. University of Southampton doi:10.5258/SOTON/404063 [Dataset]

Wang, Yu, Alam, Shaif-ul, Obraztsova, Elena D., Pozharov, Anatoly S., Set, Sze Y. and Yamashita, Shinji (2016) Generation of stretched pulses and dissipative solitons at 2 µm from an all-fiber mode-locked laser using carbon nanotube saturable absorbers. Optics Letters, 41 (16), 3864-3867. (doi:10.1364/OL.41.003864).

Jung, Yongmin, Kang, Qiongyue, Jain, Saurabh, Alam, Shaif-ul and Richardson, David (2017) Recent progress in SDM amplifiers. Photonic West 2017, San Francisco, United States. 28 Jan - 02 Feb 2017. (doi:10.1117/12.2252014).

Lin, Di, Baktash, Neda and Berendt, Martin et al. (2017) Radially and azimuthally polarized nanosecond Yb-doped MOPA system incorporating temporal shaping. Optics Letters, 42 (9), 1740-1743. (doi:10.1364/OL.42.001740).

Lin, Di, Baktash, Neda, Berendt, Martin, Beresna, Martynas, Kazansky, Peter, Clarkson, William, Alam, Shaif-ul and Richardson, David (2016) Radially polarized nanosecond Yb-doped fiber MOPA system incorporating temporal shaping. In 2016 Conference on Lasers and Electro-Optics (CLEO). OSA. 2 pp . (doi:10.1364/CLEO_SI.2016.STh4O.3).

Zhang, Betty Meng, Feng, Yujun, Lin, Di, Price, Jonathan H.V., Nilsson, Johan, Alam, Shaiful, Shum, Perry Ping, Payne, David Neil and Richardson, David J. (2017) Demonstration of arbitrary temporal shaping of picosecond pulses in a radially polarized Yb-fiber MOPA with > 10 W average power. Optics Express, 25 (13), 15402-15413. (doi:10.1364/OE.25.015402).

Castro, C., Jain, S., Jung, Y., De Man, E., Calabrò, S., Pulverer, K., Bohn, M., Hayes, John, Alam, S., Richardson, D.J., Takenaga, K., Mizuno, T., Miyamoto, Y., Morioka, T. and Rosenkranz, W. (2017) 200 Gbit/s 16QAM WDM transmission over a fully integrated cladding pumped 7-core MCF system. In Optical Fiber Communication Conference 2017. OSA..

Lin, Di, Baktash, Neda, Alam, Shaif-Ul and Richardson, David (2017) High energy, radially polarized picosecond laser pulses from a Yb-doped fiber MOPA. CLEO: Science and Innovations 2017, , San Jose, United States. 14 - 19 May 2017. 2 pp . (doi:10.1364/CLEO_SI.2017.STu4K.5).

Mizuno, T., Isoda, A., Shibahara, K., Miyamoto, Y., Jain, S., Alam, S.-U., Richardson, D.J., Castro, C., Pulverer, K., Sasaki, Y., Amma, Y., Takenaga, K., Aikawa, K. and Morioka, T. (2017) In-service crosstalk monitoring for dense space division multiplexed multi-core fiber transmission systems. In Optical Fiber Communication Conference 2017. OSA.. (doi:10.1364/OFC.2017.M3J.2).

Beresna, Martynas, Jung, Yongmin, Richardson, David, Brambilla, Gilberto, Wang, Yun, Hayes, John and Alam, Shaif-Ul (2017) Independent core attenuation control in multicore fibers by direct femtosecond laser inscription. In 2017 Optical Fiber Communications Conference and Exhibition (OFC). IEEE. 3 pp .

Jung, Yongmin, Hayes, John, Sasaki, Yusuke, Aikawa, Kazuhiko, Alam, Shaif-Ul and Richardson, David (2017) All-fiber optical interconnection for dissimilar multicore fibers with low insertion loss. In 2017 Optical Fiber Communication Conference. OSA.. (doi:10.1364/OFC.2017.W3H.2).

Wong, Nicholas Heng Loong, Jung, Yongmin, Alam, Shaif-Ul, Petropoulos, Periklis and Richardson, David (2017) Numerical analysis of mode propagation and coupling in multimode fibers. In 2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC). IEEE.. (doi:10.1109/OECC.2017.8115029).

Feng, Feng, Jin, Xianqing, O'Brien, Dominic, Payne, Frank, Jung, Yongmin, Kang, Qiongyue, Barua, Pranabesh, Sahu, Jayanta, Alam, Shaif-Ul, Richardson, David and Wilkinson, Timothy (2017) All-optical mode-group multiplexed transmission over a graded-index ring-core fiber with single radial mode. Optics Express, 25 (12), 13773-13781. (doi:10.1364/OE.25.013773).

Castro, Carlos, Jain, Saurabh, Man, Erik de, Jung, Yongmin, Hayes, John, Calabrò, Stefano, Pulverer, Klaus, Bohn, Marc, Alam, Shaif-Ul, Richardson, David, Takenaga, Katsuhiro, Mizuno, Takayuki, Miyamoto, Yutaka, Morioka, Toshio and Rosenkranz, Werner (2017) 100-Gb/s transmission over a 2520-km integrated MCF system using cladding-pumped amplifiers. Photonic Technology Letters, 29 (14), 1187-1190. (doi:10.1109/LPT.2017.2711780).

Thipparapu, Naresh Kumar, Chunyun, Guo, Umnikov, Andrey, Barua, Pranabesh, Taranta, Austin, Alam, Shaif-Ul and Sahu, Jayanta (2017) Self-mode-locked bismuth-doped fiber laser operating at 1340nm. The European Conference on Lasers and Electro-Optics, , Munich, Germany. 25 - 29 Jun 2017. p. 1 . (doi:10.1109/CLEOE-EQEC.2017.8086993).

Thipparapu, Naresh Kumar (2017) Dataset for Self-mode-locked Bismuth-doped Fiber Laser Operating at 1340nm. University of Southampton doi:10.5258/SOTON/D0209 [Dataset]

Abokhamis Mousavi, Seyed Mohammad, Mulvad, Hans, Wheeler, Natalie, Horak, Peter, Bradley, Thomas, Alam, Shaif-Ul, Hayes, John, Sandoghchi, Seyed Reza, Richardson, David J. and Poletti, Francesco (2017) Exploring nonlinear pulse propagation, Raman frequency conversion and near octave spanning supercontinuum generation in atmospheric air-filled hollow-core Kagomé fiber. Vodopyanov, Konstantin L. and Schepler, Kenneth L. (eds.) In Nonlinear Frequency Generation and Conversion: Materials and Devices XVI. vol. 10088, SPIE. pp. 1-10 . (doi:10.1117/12.2253706).

Ibsen, Morten, Shi, Jindan, Alam, Shaif-Ul, Lim, Ee Leong, Corbari, Costantino, Kazansky, Peter and Richardson, David J. (2015) Periodic all-fibre devices for optical frequency conversion and generation. In Asia Communications and Photonics Conference 2015. OSA.. (doi:10.1364/ACPC.2015.AS4C.2).

Jung, Yongmin, Jain, Saurabh, Alam, Shaif-Ul and Richardson, David (2017) Optical amplifiers for space division multiplexing (SDM). The 12th Conference on Lasers and Electro-Optics, The 22nd OptoElectronics and Communications Conference, and The 5th Photonics Global Conference, Sands Expo and Convention Centre, Singapore, Singapore. 31 Jul - 03 Aug 2017.

Alam, Shaif-Ul, Jung, Yongmin, Jain, Saurabh and Richardson, David (2017) Erbium doped fiber amplifiers for space-division multiplexed systems. The 12th Conference on Lasers and Electro-Optics, The 22nd OptoElectronics and Communications Conference, and The 5th Photonics Global Conference, Sands Expo and Convention Centre, Singapore, Singapore. 31 Jul - 03 Aug 2017.

Jain, Saurabh, Jung, Yongmin, Alam, Shaif-Ul and Richardson, David (2017) High core count multicore fiber amplifiers. In Advanced Photonics 2017. OSA.. (doi:10.1364/NETWORKS.2017.NeW3B.5).

Castro, Carlos, Jain, Saurabh, Man, Erik De, Jung, Yongmin, Hayes, John, Calabro, Stefano, Pulverer, Klaus, Bohn, Marc, Alam, Shaif-Ul, Richardson, David, Takenaga, Katsuhiro, Mizuno, T., Miyamoto, Y., Morioka, T. and Rosenkranz, Werner (2017) 15 x 200 Gbit/s 16-QAM SDM transmission over an integrated 7-core cladding-pumped repeatered multicore link in a recirculating loop. IEEE Journal of Lightwave Technology, 36 (2), 349-354. (doi:10.1109/JLT.2017.2741495).

Xu, Lin, Fu, Qiang, Liang, Sijing, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2017) Thulium-fiber-laser-pumped, high-peak-power, picosecond, mid-infrared orientation-patterned GaAs optical parametric generator and amplifier. Optics Letters, 42 (19), 4036-4039. (doi:10.1364/OL.42.004036).

Castro, C., Jain, S., Jung, Y., De Man, E., Calabrò, S., Pulverer, K., Bohn, M., Hayes, J.R., Alam, S.U., Richardson, D.J., Sasaki, Y., Mizuno, T., Miyamoto, Y., Morioka, T. and Rosenkranz, W. (2017) 50 ch x 250 Gbit/s 32-QAM transmission over a fully integrated 7-core multicore link. In 43rd European Conference on Optical Communication, ECOC 2017. vol. 2017-September, IEEE. pp. 1-3 . (doi:10.1109/ECOC.2017.8345849).

Jung, Yongmin, Hayes, John, Alam, Shaif-Ul and Richardson, David (2018) Multicore fibre fan-in/fan-out devices using fibre optic collimators. In 2017 European Conference on Optical Communications (ECOC). IEEE. 3 pp . (doi:10.1109/ECOC.2017.8345892).

Feng, Feng, Jung, Yongmin, Zhou, Hongyan, Zhang, Rui, Chen, Su, Wang, Honghai, Yang, Yucheng, Alam, Shaif-Ul, Richardson, David and Wilkinson, Timothy (2018) High-order mode group multiplexed transmission over a 24km ring-core fibre with OOK modulation and direct detection. In 2017 European Conference on Optical Communications (ECOC). Institute of Electrical and Electronics Engineers Inc. 3 pp . (doi:10.1109/ECOC.2017.8345969).

Nooruzzaman, Md, Jain, Saurabh, Jung, Yongmin, Alam, Shaif Ul, Richardson, David J., Miyamoto, Yutaka and Morioka, Toshio (2018) Power consumption in multi-core fibre networks. In 43rd European Conference on Optical Communication, ECOC 2017. vol. 2017-September, IEEE. pp. 1-3 . (doi:10.1109/ECOC.2017.8346158).

Chen, Shaoxiang (Sean), Jung, Yongmin, Alam, Shaif-Ul, Wang, Junjia, Sidharthan, R., Ho, Daryl, Jain, Saurabh, Yoo, Seongwoo and Richardson, David (2018) Ultra-wideband operation of a tunable thulium fibre laser offering tunability from 1679-1992nm. In 2017 European Conference on Optical Communication (ECOC) 17-21 Sep, Gothenburg, Sweden. vol. 2017-September, IEEE. pp. 1-3 . (doi:10.1109/ECOC.2017.8345863).

Castro, Carlos, Jain, Saurabh, Jung, Yongmin, Man, Erik, Calabro, Stefano, Pulverer, Klaus, Bohn, Marc, Hayes, John, Alam, Shaif-Ul, Richardson, David J., Sasaki, Yusuke, Mizuno, Takayuki, Shibahara, Kohki, Kobayashi, Takayuki, Miyamoto, Yutaka, Morioka, Toshio, Rosenkranz, Werner, Shibahara, Kohki, Kobayashi, Takayuki, Miyamoto, Yutaka and Rosenkranz, Werner (2018) Crosstalk analysis of 32-core dense space division multiplexed system for higher order modulation formats using an integrated cladding-pumped amplifier. In 2017 European Conference on Optical Communications (ECOC). IEEE. 3 pp . (doi:10.1109/ECOC.2017.8345878).

Pulverer, K., Tanaka, T., Habel, U., Castro, C., Bohn, M., Mizuno, T., Isoda, A., Shibahara, K., Inui, T., Miyamoto, Y., Sasaki, Y., Amma, Y., Jain, Saurabh, Jung, Yongmin, Alam, Shaif-Ul, Richardson, David, Nooruzzaman, M. and Morioka, T. (2018) First demonstration of single-mode MCF transport network with crosstalk-aware in-service optical channel control. In 2017 European Conference on Optical Communications. vol. 2017-September, IEEE.. (doi:10.1109/ECOC.2017.8346092).

Jung, Y., Kang, Q., Shen, L., Chen, S., Wang, H., Yang, Y., Shi, K., Thomsen, B.C., Correa, R. Amezcua, Eznaveh, Z. Sanjabi, Zacarias, J. Carlos Alvarado, Antonio-Lopez, J., Barua, P., Sahu, J.K., Alam, S.U. and Richardson, D.J. (2018) Few mode ring-core fiber amplifier for low differential modal gain. In 2017 European Conference on Optical Communication (ECOC). vol. 2017-September, Institute of Electrical and Electronics Engineers Inc. pp. 1-3 . (doi:10.1109/ECOC.2017.8345893).

Jain, Saurabh, Mizuno, T., Jung, Yongmin, Isoda, A., Shibahara, K., Hayes, John, Sasaki, Y., Takenaga, K., Miyamoto, Y., Alam, Shaif-Ul and Richardson, David J. (2018) Improved cladding-pumped 32-core multicore fiber amplifier. In 43rd European Conference on Optical Communication, ECOC 2017. vol. 2017-September, IEEE. 3 pp . (doi:10.1109/ECOC.2017.8346070).

Xu, Lin (2017) Dataset: Thulium-fiber-laser-pumped, high-peak-power, picosecond, mid-infrared orientation-patterned GaAs optical parametric generator and amplifier. University of Southampton doi:10.5258/SOTON/D0220 [Dataset]

Jung, Yongmin, Jain, Saurabh, Alam, Shaif-Ul and Richardson, David (2017) Fibre-based components for SDM systems. In 2017 Asia Communications and Photonics conference. IEEE.. (In Press) (doi:10.1364/ACPC.2017.S3A.2).

Jain, Saurabh, Castro, Carlos, Jung, Yongmin, Hayes, John, Sandoghchi, Reza, Mizuno, Takayuki, Sasaki, Yusuke, Amma, Yoshimichi, Miyamoto, Yutaka, Bohn, Marc, Pulverer, Klaus, Nooruzzaman, Md, Morioka, Toshio, Alam, Shaiful and Richardson, David J. (2017) 32-core erbium/ytterbium-doped multicore fiber amplifier for next generation space-division multiplexed transmission system. Optics Express, 25 (26), 32887-32896. (doi:10.1364/OE.25.032887).

Fu, Qiang (2018) Dataset for Widely tunable, narrow-linewidth, high-peak-power, picosecond mid-infrared optical parametric amplifier. University of Southampton doi:10.5258/SOTON/D0359 [Dataset]

Fu, Qiang, Xu, Lin, Liang, Sijing, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) Widely tunable, narrow-linewidth, high-peak-power, picosecond mid-infrared optical parametric amplifier. IEEE Journal of Selected Topics in Quantum Electronics, 24 (5), 1-6, [5100706]. (doi:10.1109/JSTQE.2018.2789878).

He, Jing, Lin, Di, Xu, Lin, Beresna, Martynas, Zervas, Michalis N., Alam, Shaif-Ul and Brambilla, Gilberto (2018) 5.6 kW peak power, nanosecond pulses at 274 nm from a frequency quadrupled Yb-doped fiber MOPA. University of Southampton doi:10.5258/SOTON/D0399 [Dataset]

Sharma, K., Abdul Khudus, M.I.M., Alam, S.U., Bhattacharya, S., Venkitesh, D. and Brambilla, G. (2018) Comparison of detection limit in fiber-based conventional, amplified, and gain-clamped cavity ring-down techniques. Optics Communications, 407, 186-192. (doi:10.1016/j.optcom.2017.09.017).

Tanaka, T., Pulverer, K., Habel, U., Castro, C., Bohn, M., Mizuno, T., Isoda, A., Shibahara, K., Inui, T., Miyamoto, Y., Sasaki, Y., Amma, Y., Aikawa, K., Jain, S., Jung, Yongmin, Alam, S.-U., Richardson, D.J., Nooruzzaman, Md. and Morioka, T. (2018) Demonstration of single-mode multicore fiber transport network with crosstalk-aware in-service optical path control. Journal of Lightwave Technology, 36 (7), 1451-1457. (doi:10.1109/JLT.2017.2785844).

Pangovski, Krste, Teh, Peh Siong, Lin, Dejiao, Alam, Shaiful, Richardson, David J. and O’Neill, William (2018) Pulse energy packing effects on material transport during laser processing of < 1 | 1 | 1 > silicon. Applied Physics A: Materials Science and Processing, 124 (1), [5]. (doi:10.1007/s00339-017-1415-2).

He, Jing, Lin, Di, Xu, Lin, Beresna, Martynas, Zervas, Michael, Alam, Shaif-Ul and Brambilla, Gilberto (2018) 5.6 kW peak power, nanosecond pulses at 274 nm from a frequency quadrupled Yb-doped fiber MOPA. Optics Express, 26 (6), 6554-6559. (doi:10.1364/OE.26.006554).

Xu, Lin, Liang, Sijing, Fu, Qiang, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) High-peak-power, high-efficiency, frequency doubled and quadrupled Thulium fiber laser. In 2018 Conference on Lasers and Electro-Optics (CLEO). IEEE.. (In Press)

Xu, Lin (2018) Dataset for Highly efficient frequency doubling and quadrupling of a short-pulsed Thulium fiber laser. University of Southampton doi:10.5258/SOTON/D0336 [Dataset]

Liang, Sijing, Xu, Lin, Fu, Qiang, Jung, Yongmin, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) 295kW peak power picosecond pulses from a thulium doped fiber MOPA and the generation of watt-level >2.5 octave supercontinuum extending up to 5μm. Optics Express, 26 (6), 6490-6498. (doi:10.1364/OE.26.006490).

Jung, Yongmin, Hayes, John, Alam, Shaif-Ul and Richardson, David (2018) Multi-wavelength fiber laser using a single multicore erbium doped fiber. In Optical Fiber Communication Conference 2018. OSA.. (doi:10.1364/OFC.2018.M2J.6).

Chen, Shaoxiang, Jung, Yongmin, Alam, Shaif-Ul, Jain, Saurabh, Ibsen, Morten, Sidharthan, R., Ho, Daryl, Yoo, Seongwoo and Richardson, David (2018) Ultra-short wavelength operation of a thulium doped fiber laser in the 1620-1660nm wavelength band. In Optical Fiber Communication Conference. Optical Society of America. 3 pp . (doi:10.1364/OFC.2018.M2J.4).

Jung, Yongmin, Alam, Shaif-Ul and Richardson, David (2018) Enabling component technologies for space division multiplexing. In OSA Technical Digest. OSA.. (doi:10.1364/OFC.2018.M4D.3).

Xu, Lin, Liang, Sijing, Fu, Qiang, Shepherd, David P., Richardson, David J. and Alam, Shaiful (2018) Highly efficient frequency doubling and quadrupling of a short-pulsed thulium fiber laser. Applied Physics B: Lasers and Optics, 124 (4), 1-6, [59]. (doi:10.1007/s00340-018-6925-x).

Abokhamis Mousavi, Seyed mohammad, Mulvad, Hans Christian Hansen, Wheeler, Natalie V., Horak, Peter, Hayes, John, Chen, Yong, Bradley, Thomas D., Alam, Shaif Ul, Sandoghchi, Seyed Reza, Numkam Fokoua, Eric, Richardson, David J. and Poletti, Francesco (2018) Nonlinear dynamic of picosecond pulse propagation in atmospheric air-filled hollow core fibers. Optics Express, 26 (7), 8866-8882. (doi:10.1364/OE.26.008866).

Jung, Yongmin, Alam, Shaif-Ul and Richardson, David J. (2018) Optical amplifiers for mode division multiplexing. In, Peng, G.D. (ed.) Handbook of Optical Fibers. Singapore. Springer. (doi:10.1007/978-981-10-1477-2_49-1).

Richardson, D.J., Jain, S., Jung, Y. and Alam, S.U. (2018) Optical amplifiers for SDM communication systems. In 43rd European Conference on Optical Communication, ECOC 2017. vol. 2017-September, IEEE. pp. 1-3 . (doi:10.1109/ECOC.2017.8346069).

Xu, L., Fu, Q., Liang, S., Shepherd, D.P., Richardson, D.J. and Alam, S.U. (2018) High-peak-power, picosecond, mid-infrared optical parametric generator and amplifier pumped by Tm:fiber laser. In Mid-Infrared Coherent Sources, MICS 2018. vol. Part F87-MICS 2, OSA.. (doi:10.1364/MICS.2018.MW1C.3).

Liang, Sijing, Xu, Lin, Fu, Qiang, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) A watt-level supercontinuum source from a fiber-laser-pumped fluoroindate fiber spanning 750 nm to 5 µm. In CLEO: Science and Innovations 2018. OSA.. (doi:10.1364/CLEO_SI.2018.SM4K.2).

Liang, Sijing, Xu, Lin, Fu, Qiang, Jung, Yongmin, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2017) High peak power picosecond pulses from an all-fiber master oscillator power amplifier seeded by a 1.95 μm gain-switched diode. In Advanced Solid State Lasers 2017. OSA.. (doi:10.1364/ASSL.2017.ATh3A.4).

Jung, Yongmin, Jain, Saurabh, Alam, Shaif-ul and Richardson, David J. (2018) Fully integrated SDM amplifiers. In 23rd Opto-Electronics and Communications Conference (OECC). IEEE. 2 pp . (doi:10.1109/OECC.2018.8730016).

Halder, A., Lin, Di, Umnikov, A.A., Ramírez-Martínez, N.J., Núñez-Velázquez, M., Barua, P., Alam, S. and Sahu, J.K. (2018) Yb-doped large-mode-area Al-P-silicate laser fiber fabricated by MCVD. In CLEO: Applications and Technology, CLEO_AT 2018. vol. Part F92-CLEO_A, OSA.. (doi:10.1364/CLEO_AT.2018.JTh2A.77).

Fu, Q., Xu, L., Liang, S., Shepherd, D. P., Richardson, D. J. and Alam, S. U. (2018) Picosecond fiber-laser-pumped widely tunable, narrow-linewidth, high-peak-power, mid-infrared OP-GaAs OPA. In 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings: Science and Innovations, CLEO_SI 2018. vol. Part F94-CLEO_S, Institute of Electrical and Electronics Engineers Inc.. (doi:10.1364/CLEO_SI.2018.STh3F.2).

Jung, Yongmin, Wood, Andrew, Jain, Saurabh, Sasaki, Yusuke, Alam, Shaif-Ul and Richardson, David (2018) Fully integrated optical isolators for space division multiplexed (SDM) transmission. APL Photonics, 4 (2), [022801]. (doi:10.1063/1.5050332).

Wheeler, Natalie, Chen, Yong, Hayes, John, Bradley, Thomas, Mulvad, Hans, Abokhamis Mousavi, Seyed Mohammad, Sandoghchi, Seyed Reza, Gouveia, Marcelo Alonso, Numkam Fokoua, Eric, Jasion, Gregory, Nawazuddin, M.B.S., Horak, Peter, Alam, Shaif-Ul, Petrovich, Marco, Poletti, Francesco and Richardson, David J. (2017) Novel hollow core fibers for ultra-high power delivery. IEEE Photonics Conference (IPC), , Orlando, United States. 01 - 05 Oct 2017. (doi:10.1109/IPCon.2017.8116105).

Jung, Yongmin, Wood, Andrew, Stuart James, Jain, Saurabh, Sasaki, Yusuke, Alam, Shaif-Ul and Richardson, David (2018) Dataset for Fully integrated optical isolators for space division multiplexed (SDM) transmission. University of Southampton doi:10.5258/SOTON/D0659 [Dataset]

Lin, Di (2018) Data for '106W, picosecond Yb-doped fiber MOPA system with a radially polarized output beam'. University of Southampton doi:10.5258/SOTON/D0622 [Dataset]

Lin, Di, Baktash, Neda, Alam, Shaif-Ul and Richardson, David (2018) 106 W, picosecond Yb-doped fiber MOPA system with a radially polarized output beam. Optics Letters, 43 (20), 4957-4960. (doi:10.1364/OL.43.004957).

Ben Slimen, Fedia, Chen, Sean, Lousteau, Joris, Jung, Yongmin, Alam, Shaiful, White, Nicholas, Richardson, David and Poletti, Francesco (2018) Tm³+ doped germanate large mode area single mode fiber for 2 μm lasers and amplifiers. In Specialty Optical Fibers, SOF 2018. vol. Part F111-SOF 2, OSA.. (doi:10.1364/SOF.2018.SoTu4H.2).

Cao, Wei, Hagan, David, Thomson, David J., Nedeljković, Miloš, Littlejohns, Callum G., Knights, Andy, Alam, Shaif Ul, Wang, Junjia, Gardes, Frederic, Zhang, Weiwei, Liu, Shenghao, Li, Ke, Rouifed, Mohamed Said, Xin, Guo, Wang, Wanjun, Wang, Hong, Reed, Graham T. and Mashanovich, Goran Z. (2018) High-speed silicon modulators for the 2 μm wavelength band. Optica, 5 (9), 1055-1062. (doi:10.1364/OPTICA.5.001055).

Cao, Wei, Hagan, David, Thomson, David, Nedeljkovic, Milos, Littlejohns, Callum G., Knights, Andy, Alam, Shaif-Ul, Wang, Junjia, Gardes, Frederic, Zhang, Weiwei, Liu, Shenghao, Li, Ke, Rouifed, Mohamed Saïd, Guo, Xin, Wang, Wanjun, Wang, Hong, Reed, Graham and Mashanovich, Goran (2018) Dataset for High-speed silicon modulators for the 2 μm wavelength band. University of Southampton doi:10.5258/SOTON/D0467 [Dataset]

Cao, W., Thomson, D.J., Nedeljković, M., Alam, S.U., Wang, Junjia, Gardes, F., Reed, G.T., Mashanovich, G.Z., Littlejohns, C.G. and Rouifed, M.S. (2018) 20-Gb/s silicon optical modulators for the 2 μm wavelength band. In 2018 IEEE 15th International Conference on Group IV Photonics (GFP). IEEE. pp. 1-2 . (doi:10.1109/GROUP4.2018.8478691).

Jung, Y., Harrington, K., Yerolatsitis, S., Alam, S.-U., Richardson, D.J. and Birks, T.A. (2018) Adiabatic higher order mode guidance in optical microfibres. 2018 European Conference on Optical Communication, , Rome, Italy. 23 - 27 Sep 2018. 3 pp .

Rahman, Talha, Spinnler, Bernhard, Calabro, Stefano, De Man, Erik, Pulverer, Klaus, Sommerkorn-Krombholz, Bernd, Castro, Carlos, Mizuno, Takayuki, Miyamoto, Yutaka, Takenaga, Katsuhiro, Jain, Saurabh, Jung, Yongmin, Alam, Shaif-Ul and Morioka, Toshio (2018) 108 Tb/s transmission over 120 km of 7-core multicore fiber link with integrated cladding pumped multicore amplifiers. 2018 European Conference on Optical Communication, , Rome, Italy. 23 - 27 Sep 2018. 3 pp . (doi:10.1109/ECOC.2018.8535440).

Chen, Shaoxiang, Jung, Yongmin, Alam, Shaif-Ul, Sidharthan, Raghuraman, Ho, Daryl, Yoo, Seongwoo, Richardson, David and Daniel, Jay (2018) Ultra-short wavelength operation of thulium doped fibre amplifier in the 1628-1655nm waveband. 2018 European Conference on Optical Communication, , Rome, Italy. 23 - 27 Sep 2018. 3 pp .

Allen, Thomas John, Spurrell, Josh, Berendt, Martin O., Ogunlade, Olumide, Alam, Shaif-Ul, Zhang, Edward Z., Richardson, David J. and Beard, Paul C. (2018) Ultrafast laser-scanning optical resolution photoacoustic microscopy at up to 2 million A-lines per second. Journal of Biomedical Optics, 23 (12), 1-9, [126502]. (doi:10.1117/1.JBO.23.12.126502).

Halder, A., Lin, D., Umnikov, A.A., Ramírez-Martínez, N.J., Núñez-Velázquez, M., Barua, P., Alam, S.U. and Sahu, J.K. (2019) Picosecond Yb-doped alumino-phospho-silicate fiber MOPA with >35kW peak power. In 2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018. vol. Part F113-CLEOP, OSA. 2 pp . (doi:10.1364/CLEOPR.2018.Tu3A.5).

He, Jing, Lin, Di, Xu, Lin, Beresna, Martynas, Zervas, Michalis N., Alam, Shaif Ul and Brambilla, Gilberto (2019) High peak power tunable source at 550 nm from a frequency doubled Yb-doped fiber MOPA. IEEE Photonics Technology Letters, 31 (10), 727-730, [8660709]. (doi:10.1109/LPT.2019.2903026).

Jung, Yongmin, Wada, Masaki, Sakamoto, Taiji, Jain, Saurabh, Davidson, Ian, Barua, Pranabesh, Hayes, John, Alam, Shaif-Ul, Nakajima, Kazuhide and Richardson, David (2019) High spatial density 6-mode 7-core multicore L-band fiber amplifier. Optical Fiber Communications, , San Diego, United States. 03 - 07 Mar 2019. 3 pp . (doi:10.1364/OFC.2019.Th1B.7).

Fu, Qiang (2019) Dataset for High beam quality, watt-level, widely tunable, mid-infrared OP-GaAs optical parametric oscillator. University of Southampton doi:10.5258/SOTON/D0898 [Dataset]

Fu, Qiang, Xu, Lin, Liang, Sijing, Shardlow, Peter, Shepherd, David, Alam, Shaif-Ul and Richardson, David (2019) High-beam-quality, watt-level, widely tunable, mid-infrared OP-GaAs optical parametric oscillator. Optics Letters, 44 (11), 2744-2747. (doi:10.1364/OL.44.002744).

Fu, Q., Xu, L., Liang, S., Shardlow, P.C., Shepherd, D.P., Alam, S.U. and Richardson, D.J. (2019) Mid-infrared, idler-resonant, picosecond OP-GAAS OPO with wide tunability and good beam quality. In 2019 Conference on Lasers and Electro-Optics. OSA.. (doi:10.1364/CLEO_AT.2019.JW2A.44).

Alam, S., Lin, D., Malinowski, A., Hayes, John, Chen, K. K., Flanagan, J., Geddes, V., Nilsson, J., Ingram, S., Norman, S.R., Khan, A., O'Neill, W. and Richardson, D. J. (2009) Spatially and temporally shaped, 100W, all-fiber, pulsed laser at 1.0 µm. In CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference. IEEE.. (doi:10.1109/CLEOE-EQEC.2009.5192858).

Chen, Shaoxiang, Jung, Yongmin, Alam, Shaif-Ul, Richardson, David, Sidharthan, Raghuraman, Ho, Daryl, Yoo, Seongwoo and Daniel, Jae M.O. (2019) Ultra-short wavelength operation of thulium doped fiber amplifiers and lasers. Optics Express, 27 (25), 36699-36707. (doi:10.1364/OE.27.036699).

Ren, Zhengqi, Price, Jonathan H.V., Alam, Shaif-Ul and Richardson, David J. (2019) Robust, high peak power, thulium-doped fiber chirped-pulse amplification system using a dissipative soliton seed laser. In CLEO: Science and Innovations, CLEO_SI 2019. vol. Part F129-CLEO_, OSA.. (doi:10.1364/CLEO_SI.2019.STh1E.3).

Ben Slimen, Fedia, Chen, Shaoxiang, Lousteau, Joris, Jung, Yongmin, White, Nicholas, Alam, Shaif-Ul, Richardson, David and Poletti, Francesco (2019) Highly efficient Tm³⁺ doped germanate large mode area single mode fiber laser. Optical Materials Express, 9 (8), 4115-4125. (doi:10.1364/OME.9.004115).

Jung, Yongmin, Kang, Qiongyue, Alam, Shaif-Ul and Richardson, David (2019) Spatial multiplexing: technology. Ellis, Andrew and Sorokina, Mariia (eds.) In Optical Communication Systems: Limits and Possibilities. Pan Stanford Publishing Pte Ltd. 25 pp .

Jung, Yongmin, Alam, Shaif-Ul, Richardson, David, Ramachandran, Siddharth and Abedin, Kazi S. (2020) Multicore and multimode optical amplifiers for space division multiplexing. In, Willner, Alan (ed.) Optical Fiber Telecommunications VII. Academic Press, pp. 301-333. (doi:10.1016/B978-0-12-816502-7.00008-7).

Fu, Qiang (2020) Dataset for 'High-average-power picosecond mid-infrared OP-GaAs OPO'. University of Southampton doi:10.5258/SOTON/D1191 [Dataset]

Fu, Qiang, Xu, Lin, Liang, Sijing, Shardlow, Peter, Shepherd, David, Alam, Shaif-Ul and Richardson, David (2020) High-average-power picosecond mid-infrared OP-GaAs OPO. Optics Express, 28 (4), 5741-5748. (doi:10.1364/OE.380189).

Ren, Zhengqi, Fu, Q., Xu, L., Price, J.H.V., Alam, S-U. and Richardson, D.J. (2019) Compact, high repetition rate, 4.2 MW peak power, 1925 nm, thulium-doped fiber chirped-pulse amplification system with dissipative soliton seed laser. Optics Express, 27 (25), 36741-36749. (doi:10.1364/OE.27.036741).

Berendt, M., Alam, S.-U., Pal, M., Saha, M., Sen, R. and Richardson, D.J. (2016) Single polarization, high energy pulsed fiber laser from 200 µm core Yb-doped fiber. In CLEO: Science and Innovations 2016. OSA.. (doi:10.1364/CLEO_SI.2016.STh4O.5).

Sadiq, M.U., Zhang, H., Gleeson, M., Ye, N., Roycroft, B., Kavanagh, N., Robert, C., Yang, H., Thomas, K., Gocalinska, A., Li, Z., Chen, Y., Wheeler, N.V., Hayes, J.R., Alam, S-U., Poletti, F., Petrovich, M.N., Richardson, D.J., Kelly, B., O'Carroll, J., Phelan, R., Pelucchi, E., O'Brien, P., Peters, F., Gunning, F. and Corbett, B. (2015) 40 Gbps WDM transmission over 1.15 km HC-PBGF using the first InP-based Mach Zehnder modulator at 2 µm. 2015 European Conference on Optical Communication (ECOC), Valencia, Valencia, Spain. 27 Sep - 01 Oct 2015. (doi:10.1109/ECOC.2015.7341853).

Simakov, N., Li, Z., Alam, S.U., Shardlow, P.C., Daniel, J.M.O., Jain, D., Sahu, J.K., Hemming, A., Clarkson, W.A. and Richardson, D.J. (2015) Holmium-doped fiber amplifier for optical communications at 2.05 - 2.13 µm. Optical Fiber Communication Conference 2015, , Los Angeles, United States. 22 - 26 Mar 2015. (doi:10.1364/OFC.2015.Tu2C.6).

Pangovski, K., O'Neill, W., Teh, P.S., Alam, S., Richardson, D.J. and Demir, A.G. (2012) Designer pulses for precise machining of silicon -a step towards photonic compositions. 31st International Congress on Applications of Lasers and Electro-Optics (ICALEO 2012), , Anaheim, CA. 23 - 27 Sep 2012. (doi:10.2351/1.5062576).

Allen, T.J., Alam, S., Zhang, E.Z., Laufer, J.G., Richardson, D.J. and Beard, P.C. (2011) Use of a pulsed fibre laser as an excitation source for photoacoustic tomography. In Photons Plus Ultrasound: Imaging and Sensing 2011. vol. 7899, SPIE.. (doi:10.1117/12.875291).

Vysniauskas, K., Hickey, L.M.B., Alam, S., Ghiringhelli, F., Zervas, M.N., Piper, A., Thomsen, B.C., Malinowski, A. and Richardson, D.J. (2005) High pulse energy Q-Switched laser in MOPA configuration. In Fiber Lasers II: Technology, Systems, and Applications. SPIE.. (doi:10.1117/12.601573).

Zhang, B.M., Feng, Yujun, Lin, Di, Price, J.H.V., Alam, S-U., Nilsson, J., Shum, P.P., Payne, D.N. and Richardson, D.J. (2017) Arbitrary picosecond pulse shaping in a radially polarized Yb-fiber MOPA beyond 10 W. The 16th International Conference on Optical Communications and Networks, , Wuzhen, China. 07 - 10 Aug 2017. (doi:10.1109/icocn.2017.8121434).

Allen, T.J., Berendt, M.O., Spurrell, J., Alam, S-U., Zhang, E.Z., Richardson, D.J. and Beard, P.C. (2016) Novel fiber lasers as excitation sources for photoacoustic tomography and microscopy. In Photons Plus Ultrasound: Imaging and Sensing 2016. vol. 9708, SPIE.. (doi:10.1117/12.2211733).

Donko, A., Jung, Yongmin, Wang, Y., Hayes, J., Alam, S.U., Brambilla, G., Richardson, D.J. and Beresna, M. (2017) Multicore optical fibre components fabricated using a femtosecond laser direct writing. Frontiers in Optics, , Washington DC, United States. 17 - 21 Sep 2017. (doi:10.1364/FIO.2017.FW6A.3).

Li, Z., Heidt, A.M., Teh, P.S., Berendt, M., Sahu, J.K., Phelan, R., Kelly, B., Alam, S.U. and Richardson, D.J. (2014) High energy diode-seeded nanosecond 2 µm fiber MOPA systems incorporating active pulse shaping. Conference on Lasers and Electro-Optics (CLEO '14), , San Jose, United States. 07 - 12 Jun 2014.

Shi, Wei, Schulzgen, A., Amezcua, R., Zhu, Xiushan and Alam, S-U. (2017) Fiber lasers and their applications: introduction. Journal of the Optical Society of America B, 34 (3), [FLA1]. (doi:10.1364/JOSAB.34.00FLA1).

Preble, S., Alam, S-U., Coppola, G., Her, T-H., Kim, J., Lee, H. and Tsia, K. (2017) Introduction to the issue on reports from the invited and postdeadline speakers of CLEO 2016. IEEE Journal of Selected Topics in Quantum Electronics, 23 (3), 1-3, [0200303]. (doi:10.1109/JSTQE.2017.2704818).

He, Jing, Lin, Di, Xu, Lin, Beresna, M., Zervas, M.N., Alam, S-U. and Brambilla, G. (2018) High peak power tunable DUV source around 275 nm from a frequency quadrupled Yb-doped fiber MOPA. Advanced Solid State Lasers 2018, , Boston, United States. 04 - 08 Nov 2018. (doi:10.1364/ASSL.2018.ATh2A.3).

Thomson, D.J., Li, K., Cao, W., Hagan, D., Liu, S., Meng, F., Nedeljković, M., Khokhar, A.Z., Littlejohns, C.G., Zhang, W., Ebert, M., Shakoor, A., Chen, B., Alam, S.-U., Wang, J., Chen, X., Mastronardi, L., Banakar, M., Crudgington, L., Gardes, F.Y., Xu Brian Sia, J., Wang, W., Qiao, Z., Li, X., Guo, X., Wang, H., Wilson, P., Mashanovich, G.Z., Knights, A. and Reed, G.T. (2019) Silicon optical modulators for data transmission in different wavelength bands. In 2019 21st International Conference on Transparent Optical Networks (ICTON). IEEE.. (doi:10.1109/ICTON.2019.8840302).

Wang, Yu, Alam, Shaif-Ul, Obraztsova, E.D., Pozharov, A.S. and Yamashita, S. (2015) Dissipative soliton generation at 2µm from a mode-locked fiber laser using CNT. 11th Conference on Lasers and Electro-Optics (CLEO Pacific Rim 2015), , Busan, Korea. 24 - 28 Aug 2015. (doi:10.1109/CLEOPR.2015.7376375).

Lin, Di, Carpenter, Joel, Feng, Yutong, Jung, Yongmin, Alam, Shaif-Ul and Richardson, David J. (2020) Controllable generation of structured light beams in a few-mode fiber MOPA. In CLEO: Science and Innovations 2020: Postdeadline Paper. (doi:10.1364/CLEO_AT.2020.JTh4B.8).

Fu, Qiang, Wu, Yudi, Liang, Sijing, Shardlow, Peter, Shepherd, David, Alam, Shaif-Ul, Xu, Lin and Richardson, David J. (2020) Controllable duration and repetition-rate picosecond pulses from a high-average-power OP-GaAs OPO. Optics Express. (In Press)

Allen, Thomas, Berendt, Martin, Lin, Di, Alam, Shaif-Ul, Huynh, Nam, Zhang, Edward, Richardson, David J. and Beard, Paul (2020) High pulse energy fibre laser as an excitation source for photoacoustic tomography. Optics Express, 28 (23), 34255-34265. (doi:10.1364/OE.401708).

Lin, Di, Carpenter, Joel, Feng, Yutong, Jung, Yongmin, Alam, Shaif-Ul and Richardson, David J. (2021) High power, electronically-controlled, source of user-defined vortex and vector light beams based on a few-mode fiber amplifier. Photonics Research, 9 (5), 856-864.

Price, Jonathan, Liang, Sijing, Xu, Lin, Fu, Qiang, Jung, Yongmin, Herdzik, Krzysztof, Pawel, Mahajan, Sumeet, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) The development of tailored Supercontinuum sources in silica and non-silica fibers. CLEO: QELS_Fundamental Science, CLEO_QELS 2018, , San Jose, United States. 12 - 17 May 2018. ATu3S.3 .

Mulvad, Hans, Abokhamis Mousavi, Seyed Mohammad, Zuba, Viktor, Xu, Lin, Sakr, Hesham, Bradley, Thomas, Hayes, John, Jasion, Gregory, Numkam Fokoua, Eric, Taranta, Austin, Alam, Shaif-Ul, Richardson, David and Poletti, Francesco (2022) Data set for: Kilowatt average power single-mode laser light transmission over kilometre-scale hollow core fibre. University of Southampton doi:10.5258/SOTON/D2154 [Dataset]