The University of Southampton
Telephone:
+442380593776
Email:
wac@orc.soton.ac.uk

Professor William Clarkson

Academic Staff

Andy Clarkson received a BSc (HONS) first class degree in Physics from the University of Manchester (UK) in 1984 and a Ph.D. degree in Laser Physics from the University of Southampton (UK) in 1991. He joined the newly formed Optoelectronics Research Centre (ORC) at the University of Southampton in 1989 and was promoted to a Chair in Optoelectronics in 2004. Professor Clarkson currently leads the Advanced Solid-State Sources group at the ORC.

His principal research interest is the development of novel coherent light sources with particular emphasis on power-scaling and brightness-scaling of fibre and crystal-based solid-state lasers and amplifiers, thermal effects and their mitigation, optical resonators and mode control, diode pump coupling schemes and nonlinear frequency conversion. He has made a number of important contributions to this field and was elected a Fellow of the Optical Society of America in 2005.

Professor Clarkson has given a number invited and plenary conference presentations in the field of high-power lasers and has published over 200 conference and journal papers.

He has served on the technical programme committees of a number of major international conferences, including CLEO, CLEO-Europe, Advanced Solid-State Photonics and the Europhoton conference on Solid-State and Fibre Coherent Light Sources. He has also served as a committee member and Bursary Secretary for the Quantum Electronics and Photonics Group of the Institute of Physics (UK), and as a Topical Editor for Optics Letters from 2000 to 2006.

Publications

Alvarez-Chavez, J.A., Offerhaus, H.L., Nilsson, J., Turner, P.W., Clarkson, W.A. and Richardson, D.J. (2000) High-energy, high-power ytterbium-doped Q-switched fiber laser Optics Letters, 25, (1), pp. 37-39.

Clarkson, W.A. (2001) Thermal effects and their mitigation in end-pumped solid-state lasers Journal of Physics D: Applied Physics, 34, (16), pp. 2381-2395. (doi:10.1088/0022-3727/34/16/302).

Renaud, Cyril C., Offerhaus, H.L., Alvarez-Chavez, J.A., Nilsson, J., Clarkson, W.A., Turner, P.W., Richardson, D.J. and Grudinin, A.B. (2001) Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs IEEE Journal of Quantum Electronics, 37, (2), pp. 199-206. (doi:10.1109/3.903069).

Clarkson, William A., Abdolvand, A., Shen, D.Y., Hayward, R.A., Cooper, L.J., Williams, R.B. and Nilsson, J. (2002) High power two-micron fibre lasers At XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers. 25 - 30 Aug 2002. (doi:10.1117/12.515806).

Clarkson, W.A., Barnes, N.P., Turner, P.W., Nilsson, J. and Hanna, D.C. (2002) High-power cladding pumped Tm-doped silica fiber laser with wavelength tuning from 1860 to 2090 nm Optics Letters, 27, (22), pp. 1989-1991. (doi:10.1364/OL.27.001989).

Laroche, M., Chardon, A.M., Nilsson, J., Shepherd, D.P., Clarkson, W.A., Girard, S. and Moncorge, R. (2002) Compact diode-pumped passively Q-switched tunable Er-Yb double-clad fiber laser Optics Letters, 27, (22), pp. 1980-1982. (doi:10.1364/OL.27.001980).

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), pp. 987-994. (doi:10.1109/JQE.2003.814373).

Clarkson, W.A., Cooper, L.J., Wang, P., Williams, R.B. and Sahu, J.K. (2003) Power scaling concepts for fiber lasers In, OSA Trends in Optics and Photonics Series. Washington DC, USA, Optical Society of America pp. 261-267.

Shen, D.Y., Abdolvand, A., Cooper, L.J. and Clarkson, W.A. (2004) Efficient Ho:YAG laser pumped by a cladding-pumped tunable Tm:silica-fibre laser Applied Physics B, 79, (5), pp. 559-561. (doi:10.1007/s00340-004-1562-y).

Curry, R.J., Gillin, W.P., Clarkson, J. and Batchelder, D.N. (2002) Morphological study of aluminium tris(8-hydroxyquinoline) using IR and Raman spectroscopy Journal of Applied Physics, 92, (4), pp. 1902-1905. (doi:10.1063/1.1495527).

Hayward, R.A., Clarkson, W.A., Turner, P.W., Nilsson, J., Grudinin, A.B. and Hanna, D.C. (2000) High-power and tunable operation of a diode-bar-pumped double-clad Tm-doped silica fibre laser at 2µm At CLEO/Europe 2000. 10 - 15 Sep 2000.

Hayward, R.A., Clarkson, W.A., Turner, P.W., Nilsson, Johan, Grudinin, A.B. and Hanna, David (2000) High power double-clad Tm-doped fibre laser with >12W single-mode output at 2µm At CLEO 2000. 07 - 12 May 2000.

Wang, P., Cooper, L.J., Williams, R.B., Sahu, J.K. and Clarkson, W.A. (2004) Helical-core ytterbium-doped fibre laser Electronics Letters, 40, (21), pp. 1325-1326. (doi:10.1049/el:20046623).

Shen, D.Y., Clarkson, W.A., Cooper, L.J. and Williams, R.B. (2004) Efficient single-axial-mode operation of a Ho:YAG ring laser pumped by a Tm-doped silica fiber laser Optics Letters, 29, (20), pp. 2396-2398. (doi:10.1364/OL.29.002396).

Hayward, R.A., Clarkson, W.A. and Hanna, David (2000) High-power room-temperature intracavity-pumped Ho:YAG laser At CLEO/Europe 2000. 10 - 15 Sep 2000.

Renaud, C.C., Offerhaus, H.L., Alvarez-Chavez, J.A., Nilsson, J., Turner, P.W., Clarkson, W.A. and Grudinin, A.B. (2000) Designs for efficient high-energy high brightness Q-switched cladding-pumped ytterbium-doped fibre lasers At CLEO 2000. 07 - 12 May 2000.

Dhanjal, S., Hoogland, S., Roberts, J.S., Hayward, R.A., Clarkson, W.A. and Tropper, Anne (2000) 1-W quasi-cw near-diffraction-limited semiconductor laser pumped optically by a fibre-coupled diode bar At CLEO 2000. 07 - 12 May 2000.

Kendall, T.M.J., Clarkson, W.A., Hardman, P.J., Ross, G.W. and Hanna, David (2000) Multiline optical parametric oscillators based on periodically-poled lithium niobate At CLEO 2000. 07 - 12 May 2000.

Hayward, R.A., Clarkson, W.A. and Hanna, David (2000) High-power diode-pumped room-temperature Tm:YAG and intracavity-pumped Ho:YAG lasers At ASSL 2000. 13 - 16 Feb 2000.

Clarkson, W.A. (2002) High power fibre lasers At XIV Symposium on Gas Flow and Chemical Lasers and High Power Laser Conference. 26 - 30 Aug 2002.

Clarkson, W.A., Matera, V., Kendall, T.M.J., Hanna, David, Nilsson, J. and Turner, P.W. (2001) High-power wavelength-combined cladding-pumped Tm-doped silica fibre lasers At CLEO/QELS 2001. 06 - 11 May 2001.

Musgrave, I.O., Clarkson, W.A. and Hanna, D.C. (2001) Study of thermal lensing in Nd:YVO4 under intense diode-end-pumping At QEP-15. 03 - 06 Sep 2001.

Kendall, T.M.J., Clarkson, W.A., Hardman, P.J. and Hanna, D.C. (2001) Single-frequency Nd:YLF master-oscillator power amplifier with 15W output at 1053nm At QEP-15. 03 - 06 Sep 2001.

Clarkson, W.A., Matera, V., Abdolvand, A., Kendall, T.M.J., Hanna, D.C., Nilsson, J. and Turner, P.W. (2001) Spectral beam combining of cladding-pumped Tm-doped fibre lasers At QEP-15. 03 - 06 Sep 2001.

Alvarez-Chavez, J.A., Nilsson, J., Clarkson, W.A. and Grudinin, A.B. (2001) Broadband Fibre Devices At Rank Prize Symposium, United Kingdom. 18 - 21 Jun 2001.

Kendall, T.M.J., Clarkson, W.A., Hardman, P.J. and Hanna, D.C. (2001) Efficient Nd:YLF master-oscillator-power-amplifier with 15W single-frequency output at 1053nm At CLEO/Europe-EQEC 2001: Conference on Lasers and Electro-Optics. European Quantum Electronics Conference. 18 - 22 Jun 2001. 1 pp.

Clarkson, W.A., Matera, V., Abdolvand, A., Kendall, T.M.J., Hanna, D.C., Nilsson, J. and Turner, P.W. (2001) Power scaling of cladding-pumped Tm-doped silica fibre lasers At CLEO/Europe-EQEC 2001: Conference on Lasers and Electro-Optics. European Quantum Electronics Conference. 18 - 22 Jun 2001. 2 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 At ASSL 2001: Conference on Advanced Solid State Lasers. 28 - 31 Jan 2001. 3 pp.

Barnes, N.P., Clarkson, W.A., Hanna, David, Turner, P.W., Nilsson, J. and Walsh, B.M. (2001) Diode pumped tunable Q-switched Tm:glass fiber laser At ASSL 2001: Advanced Solid-State Lasers 2001. 28 - 31 Jan 2001. 6 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 At CLEO 2001: Conference on Lasers and Electro-Optics. 06 - 11 May 2001. 2 pp.

Renaud, C.C., Alvarez-Chavez, J.A., Sahu, Jayanta, Nilsson, J., Richardson, David and Clarkson, W.A. (2001) 7.7mJ pulses from a large core Yb-doped cladding pumped Q-switched fibre laser At CLEO 2001: Conference on Lasers and Electro-Optics. 06 - 11 May 2001. 2 pp.

Musgrave, I.O., Clarkson, W.A. and Hanna, D.C. (2001) Detailed study of thermal lensing in Nd:YVO4 under intense diode end-pumping At CLEO 2001: Conference on Lasers and Electro-Optics. 06 - 11 May 2001. 3 pp.

Kendall, T.M.J., Clarkson, W.A., Hardman, P.J. and Hanna, D.C. (2001) High-power Nd:YLF master oscillator power amplifier with 15W single-frequency output at 1053nm At CLEO 2001: Conference on Lasers and Electro-Optics. 06 - 11 May 2001. 2 pp.

Hayward, R.A., Clarkson, W.A., Turner, P.W., Nilsson, J., Grudinin, A.B. and Hanna, D.C. (2000) Efficient cladding-pumped Tm-doped silica fibre laser with high power single-mode output at 2µm Electronics Letters, 36, (8), pp. 711-712. (doi:10.1049/el:20000577).

Cooper, L.J., Wang, P., Williams, R.B., Sahu, J.K., Clarkson, W.A., Scott, A.M. and Jones, D. (2005) High-power Yb-doped multi-core ribbon fiber laser Optics Letters, 30, (21), pp. 2906-2908.

Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2005) Highly efficient Er,Yb-doped fiber laser with 188W free-running and > 100W tunable output power Optics Express, 13, (13), pp. 4916-4921. (doi:10.1364/OPEX.13.004916).

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), pp. 5-30. (doi:10.1016/j.yofte.2003.07.001).

Yarrow, Michael J., Kim, Ji Won and Clarkson, W.A. (2006) High power single-frequency continuous-wave and pulsed Nd:YVO4 master oscillator power amplifier At ASSP 2006: 21st Annual Conference on Advanced Solid-State Photonics. 29 Jan - 01 Feb 2006.

Wang, P., Cooper, L.J., Williams, R.B., Sahu, J.K., Clarkson, W.A., Scott, A.M. and Jones, D. (2004) High-power Yb-doped multi-core ribbon fibre laser At EPS-QEOD Europhoton Conference 2004. 29 Aug - 03 Sep 2004. 1 pp.

Shen, Deyuan, Sahu, Jayanta and Clarkson, W. Andrew, (2004) Efficient holmium-doped solid-state lasers pumped by a Tm-doped silica fiber laser Terry, Jonathan A.C. and Clarkson, W.Andrew (eds.) At SPIE European Symposium on Optics and Photonics for Defence & Security. 25 - 28 Oct 2004. , pp. 46-55.

Jeong, Y., Dupriez, P., Sahu, J.K., Nilsson, J., Shen, D.Y., Clarkson, W.A. and Jackson, S.D. (2004) Thulium-ytterbium co-doped fiber laser with 32W of output power in the 2 micron wavelength range At EPS-QEOD Europhoton Meetings. 29 Aug - 03 Sep 2004. 1 pp.

Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2005) Ultra-efficient Er:YAG laser with 60W output power at 1645nm end-pumped by an Er-Yb co-doped fibre laser At CLEO/Europe 2005: Conference on Lasers and Electro-Optics Europe, 2005. 12 - 17 Jun 2005. , p.30.

Shen, D.Y., Sahu, Jayanta and Clarkson, W.A. (2005) Highly efficient erbium-ytterbium co-doped fibre laser with 188W output power at 1565nm At CLEO/Europe 2005: Conference on Lasers and Electro-Optics Europe, 2005. 12 - 17 Jun 2005. , p.510.

Shen, D.Y., Shcheslavskiy, V., Sahu, J.K. and Clarkson, W.A. (2005) High-power widely tunable Tm fibre lasers in cladding-pumped and core-pumped cavity configurations At CLEO / Europe - EQEC 2005. Conference on Lasers and Electro-Optics. European Quantum Electronics Conference. 12 - 17 Jun 2005. 1 pp.

Shen, D.Y., Jander, P., Sahu, J.K. and Clarkson, W.A. (2005) High power and ultra efficient operation of 1645 nm Er:YAG laser pumped by a 100W tunable Er/Yb fiber laser At 20th Anniversary Meeting Advances Solid-State Photonics. 06 - 09 Feb 2005.

Shen, D.Y., Mackenzie, Jacob, Sahu, Jayanta, Clarkson, W.A. and Jackson, S.D. (2005) High-power and ultra-efficient operation of a Tm3+-doped silica fiber laser At ASSP 2005: 20th Anniversary Meeting Advanced Solid-State Photonics. 06 - 09 Feb 2005.

So, S., Shepherd, David, Mackenzie, Jacob and Clarkson, W.A. (2005) Power scaling strategy for longitudinally diode-pumped Tm:YLF lasers At CLEO/Europe 2005: European Conference on Lasers and Electro-Optics. 12 - 17 Jun 2005. , p.29. (doi:10.1109/CLEOE.2005.1567818).

Nilsson, J., Sahu, J.K., Jeong, Y., Philippov, V.N., Soh, D.B.S., Codemard, C., Dupriez, P., Kim, J., Richardson, D.J., Malinowski, A., Piper, A.N., Price, J.H.V., Furusawa, K., Clarkson, W.A. and Payne, D.N. (2005) High power fiber lasers At OFC/NFOEC 2005: Optical Fiber Communication Conference. 06 - 11 Mar 2005. 3 pp.

Wang, P., Cooper, L.J., Shcheslavskiy, V., Sahu, J.K. and Clarkson, W.A. (2005) Cladding-pumped Yb-doped helical-core fibre lasers and amplifiers At CLEO/Europe 2005: European Conference on Lasers and Electro-Optics 2005. 12 - 17 Jun 2005. , p.512. (doi:10.1109/CLEOE.2005.1568290).

Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2006) Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm Optics Letters, 31, (6), pp. 754-756. (doi:10.1364/OL.31.000754).

So, Sik, Mackenzie, Jacob, Shepherd, David, Clarkson, W. Andrew, Betterton, John G., Gorton, Eric K. and Terry, John A.C. (2006) Power-scalable Ho:YAG slab laser intracavity side-pumped by a Tm:YLF slab laser At ASSP 2006: 21st Annual Conference on Advanced Solid-State Photonics (Topical Meeting and Tabletop Exhibit). 29 Jan - 01 Feb 2006. 3 pp.

Wang, P., Cooper, L.J., Sahu, J.K. and Clarkson, W.A. (2006) Efficient single-mode operation of a cladding-pumped ytterbium-doped helical-core fiber laser Optics Letters, 31, (2), pp. 226-228. (doi:10.1364/OL.31.000226).

So, S., Mackenzie, J.I., Shepherd, D.P., Clarkson, W.A., Betterton, J.G. and Gorton, E.K. (2006) A power scaling strategy for longitudinally diode-pumped Tm:YLF lasers Applied Physics B, 84, (3), pp. 389-393. (doi:10.1007/s00340-006-2286-y).

Wang, P., Cooper, L.J., Shcheslavskiy, V., Sahu, J.K. and Clarkson, W.A. (2005) Cladding-pumped ytterbium-doped helical-core fiber laser At ASSP 2005. 06 - 09 Feb 2005.

Abdolvand, A., Shen, D.Y., Cooper, L.J., Williams, R.B. and Clarkson, W.A. (2003) Highly efficient Ho:YAG laser pumped by a Tm-doped silica fiber laser At CLEO/QELS 2003 Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference. 03 - 05 Jun 2003.

Philippov, V., Nilsson, J., Jeong, Y., Alegria, C., Soh, D.B.S., Codemard, C., Baek, S., Sahu, J.K., Clarkson, W.A. and Payne, D.N. (2003) Versatile and functional high power fiber sources At 2nd International Symposium on High-Power Fiber Lasers and Their Applications. 01 - 03 Jul 2003.

Payne, David, Nilsson, Johan, Jeong, Y., Alegria, Carlos, Philippov, V., Soh, D.B.S., Codemard, Christophe, Baek, S., Sahu, Jayanta, Richardson, David and Clarkson, W.A. (2003) The revolution in high-power fiber lasers At 2nd International Symposium on High-Power Fiber Lasers and Their Applications. 01 - 03 Jul 2003.

Sahu, J.K., Codemard, C.A., Selvas, R., Nilsson, J., Laroche, M. and Clarkson, W.A. (2003) Tunable Tm-doped silica fibre laser At Conference on Lasers and Electro-Optics/Europe (CLEO/Europe-EQEC 2003). 22 - 27 Jun 2003.

Philippov, V., Nilsson, J., Clarkson, W.A., Abdolvand, A., Kisel, V.E., Shcherbitsky, V.G., Kuleshov, N.V., Konstantinov, V.I. and Levchenko, V.I. (2003) Passively Q-switched Er-Yb double clad fiber laser with Cr(2)+:ZnSe and Co(2)+:MgAl(2)O(4) as a saturable absorber At International Conference on Laser Optics for Young Scientists - LOYS 2003 also organised with XI conference LO'2003. 30 Jun - 04 Jul 2003.

Nilsson, J., Jeong, Y., Alegria, C., Philippov, V., Soh, D.B.S., Codemard, C., Baek, S., Sahu, Jayanta, Richardson, David, Clarkson, W.A. and Payne, D.N. (2003) Fiber lasers: flexible and functional solutions for today and the future At 3rd International Symposium on Laser and Nonlinear Optical Materials (ISLNOM). 20 - 24 Jul 2003.

Laroche, M., Clarkson, W.A., Sahu, Jayanta, Nilsson, Johan and Jeong, Y. (2003) High power cladding-pumped tunable Er-Yb fiber laser At CLEO/QELS 2003 Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference. 03 - 05 Jun 2003. 2 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 At OFC 2003. 23 - 28 Mar 2003. 1 pp.

Jeong, Yoonchan, Sahu, J.K., Laroche, M., Clarkson, W.A., Furusawa, K., Richardson, David and Nilsson, J. (2003) 120-W Q-switched cladding-pumped Yb-doped fibre laser At Conference on Lasers and Electro-Optics/Europe (CLEO/Europe-EQEC 2003). 23 - 27 Jun 2003. 1 pp.

Abdolvand, A., Shen, D.Y., Cooper, L.J., Williams, R.B. and Clarkson, W.A. (2003) Ultra-efficient Ho:YAG laser end-pumped by a cladding-pumped Tm-doped silica fibre laser At ASSP 2003. 02 - 05 Feb 2003.

Laroche, M., Chardon, A.M., Nilsson, J., Shepherd, David, Sahu, J.K., Clarkson, W.A., Girard, S. and Moncorge, R. (2003) Diode-pumped passively Q-switched tunable Er-Yb double-clad fibre laser At Conference on Lasers and Electro-Optics/Europe (CLEO/Europe-EQEC 2003). 23 - 27 Jun 2003. 1 pp. (doi:10.1109/CLEOE.2003.1313689).

Shen, D.Y., Clarkson, W.A., Cooper, L.J. and Williams, R.B. (2004) 3.7-Watt single-frequency cw Ho:YAG ring laser end-pumped by cladding-pumped Tm-doped silica fibre laser At Advanced Solid-State Photonics (ASSP 2004). 01 - 04 Feb 2004.

Shen, D.Y., Cooper, L.J. and Clarkson, W.A. (2004) Highly efficient Ho:YLF and Ho:YAG lasers pumped by Tm-doped silica fibre laser At EPS-QEOD Europhoton. 29 Aug - 03 Sep 2004. 1 pp.

Jeong, Y., Dupriez, P., Sahu, Jayanta, Nilsson, J., Shen, D.Y., Clarkson, W.A. and Jackson, S.D. (2004) Thulium-ytterbium co-doped fiber laser with 75W of output power at 2 microns At SPIE European Symposium on Optics and Photonics for Defence & Security. 25 - 28 Oct 2004. 1 pp. (doi:10.1117/12.578727).

Jander, P., Sahu, J.K. and Clarkson, W.A. (2004) Efficient Er:YAG lased pumped in-band by an Er/Yb fibre laser At EPS-QEOD Europhoton 2004. 29 Aug - 03 Sep 2004.

Jander, P., Sahu, J.K. and Clarkson, W.A. (2004) High power Er:YAG laser at 1646nm pumped by an Er/Yb fibre laser At SPIE European Symposium on Optics and Photonics for Defence & Security. 25 - 28 Oct 2004.

Sahu, J.K., Jeong, Y., Alegria, C., Codemard, C., Soh, D.B.S., Baek, S., Philippov, V., Cooper, L.J., Nilsson, J., Williams, R.B., Ibsen, M., Clarkson, W.A., Richardson, D.J. and Payne, D.N. (2004) Recent advances in high power fiber lasers At Advanced Solid-State Photonics (ASSP 2004). 01 - 04 Feb 2004.

Cooper, L.J., Wang, P., Williams, R.B., Sahu, J.K., Clarkson, W.A., Scott, A.M. and Jones, D. (2004) Diode-stack-pumped Yb-doped multi-core ribbon fiber laser At CLEO/IQEC 2004: Conference on Lasers and Electro-Optics, Quantum Electronics and Laser Science. 16 - 21 May 2004. 2 pp.

Philippov, V., Nilsson, J., Clarkson, W.A., Abdolvand, A., Kisel, V.E., Shcherbitsky, V.G., Kuleshov, N.V., Konstantinov, V.I. and Levchenko, V.I. (2004) Passively Q-switched Er-Yb double clad fiber laser with Cr2+:ZnSe and Co2+:MgAl2O4 At SPIE 5335 : Photonics West 2004: Fiber Lasers: Technology, Systems, and Applications. 25 - 31 Jan 2004. , pp. 8-15. (doi:10.1117/12.524767).

Philippov, V., Sahu, Jayanta, Codemard, C., Clarkson, W.A., Jang, J.N., Nilsson, J. and Pearson, G.N. (2004) All-fiber 1.15 mJ pulsed eye-safe optical source At SPIE 5620 : Photonics West 2004: Solid State Laser Technologies and Femtosecond Phenomena. 25 - 31 Jan 2004. , pp. 284-288. (doi:10.1117/12.527451).

Shen, D.Y., Clarkson, W.A., Cooper, L.J. and Williams, R.B. (2004) Efficient Tm:silica fiber laser pumped Ho:YAG lasers At CLEO/IQEC 2004: Conference on Lasers and Electro-Optics, Quantum Electronics and Laser Science. 16 - 21 May 2004. 2 pp. (doi:10.1109/CLEO.2004.1360829).

Kim, J.W., Yarrow, M.J. and Clarkson, W.A. (2006) High power single-frequency continuous-wave Nd:YVO4 master-oscillator power amplifier Applied Physics B, 85, (4), pp. 539-543. (doi:10.1007/s00340-006-2380-1).

Yarrow, M.J. and Clarkson, W.A. (2005) High average power end-pumped Nd:YVO4 master oscillator power amplifier At 18th Annual Meeting of the IEEE Lasers and Electro-Optics Society - LEOS 2005. 23 - 27 Oct 2005.

Shen, D.Y., Sahu, Jayanta and Clarkson, W.A. (2006) Power scaling of continuous-wave and Q-switched hybrid fiber-bulk erbium lasers at 1645 nm At Europhoton 2006. 10 - 15 Sep 2006.

Shen, D.Y., Sahu, Jayanta and Clarkson, W.A. (2006) High-power widely tunable Tm:fibre lasers pumped by an Er, Yb co-doped fibre laser at 1.6 microns Optics Express, 14, (13), pp. 6084-6090. (doi:10.1364/OE.14.006084).

Laroche, M., Jander, P., Clarkson, W.A., Sahu, J.K., Nilsson, J. and Jeong, Y. (2004) High power cladding-pumped tunable Er, Yb-doped fibre laser Electronics Letters, 40, (14), pp. 855-856. (doi:10.1049/el:20045199).

Pearson, L., Chan, J.S.P., Wang, P., Sahu, Jayanta and Clarkson, William (2007) Novel approach for single-ended operation of a cladding-pumped fibre laser Applied Physics B, 87, (1), pp. 75-78. (doi:10.1007/s00340-006-2575-5).

Wang, P., Sahu, Jayanta K. and Clarkson, William (2007) High-power broadband ytterbium-doped helical-core fiber superfluorescent source IEEE Photonics Technology Letters, 19, (5), pp. 300-302. (doi:10.1109/LPT.2007.891244).

Laroche, Mathieu, Girard, Sylvain, Sahu, Jayanta K., Clarkson, W.Andrew and Nilsson, Johan (2006) Accurate efficiency evaluation of energy-transfer processes in phosphosilicate Er3+-Yb3+-codoped fibers Journal of the Optical Society of America B, 23, (2), pp. 195-202. (doi:10.1364/JOSAB.23.000195).

Yarrow, M.J., Kim, J.W. and Clarkson, W.A. (2007) High power, long pulse duration, single-frequency Nd:YVO4 master-oscillator power-amplifier Optics Communications, 270, (2), pp. 361-367.

Mackenzie, J.I., So, S., Shepherd, D.P. and Clarkson, W.A. (2005) Comparison of laser performance for diode-pumped Tm:YLF of various doping concentrations At Advanced Solid-State Photonics (ASSP). 06 - 09 Feb 2005. , pp. 202-207.

So, S., Mackenzie, Jacob, Shepherd, David, Clarkson, W.A., Betterton, J.G., Gorton, E.K. and Terry, J.A.C. (2006) Intra-cavity side-pumped Ho:YAG laser Optics Express, 14, (22), pp. 10481-10487. (doi:10.1364/OE.14.010481).

Wang, P., Sahu, Jayanta and Clarkson, W.A. (2006) 110 W double-ended ytterbium-doped fiber superfluorescent source with M2=1.6 Optics Letters, 31, (21), pp. 3116-3118. (doi:10.1364/OL.31.003116).

Jeong, Y., Dupriez, P., Sahu, J.K., Nilsson, J., Clarkson, W.A. and Jackson, S.D. (2005) Power scaling of 2 µm ytterbium-sensitised thulium-doped silica fibre laser diode-pumped at 975 nm Electronics Letters, 41, (4), pp. 173-174. (doi:10.1049/el:20057534).

Kim, J.W., Musgrave, I.O., Yarrow, M.J. and Clarkson, W.A. (2007) Simple technique for measuring the energy-transfer-upconversion parameter in solid-state laser materials At Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007. 17 - 22 Jun 2007. 1 pp.

Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2007) High power in-band pumped Er:YAG laser at 1617 nm At Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007. 17 - 22 Jun 2007. 1 pp.

Wang, P., Sahu, J.K. and Clarkson, W.A. (2007) Power scaling of ytterbium-doped fiber superfluorescent sources IEEE Journal of Selected Topics in Quantum Electronics, 13, (3), pp. 580-587. (doi:10.1109/JSTQE.2007.897181).

Wang, P., Sahu, Jayanta and Clarkson, William (2007) High power single-ended Yb-doped fiber ASE source At Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS) 2007. 06 - 11 May 2007. 2 pp.

Chan, J.S.P., Wang, P., Sahu, Jayanta and Clarkson, W.A. (2007) Ultra-low feedback fibre end termination geometry for high power fibre source applications At Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007. 17 - 22 Jun 2007. 1 pp.

Wang, P. and Clarkson, W.A. (2007) Two-stage linearly-polarized ytterbium-doped fibre superfluorescent source with 106 W output power At Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007. 17 - 22 Jun 2007. 1 pp.

Pearson, L., Chan, J.S.P., Wang, P. and Clarkson, W.A. (2006) Simple scheme for single-ended operation of a cladding-pumped fiber laser At 2nd EPS-QEOD Europhoton Conference. 10 - 15 Sep 2006. 1 pp.

Yarrow, M.J., Kim, J.W. and Clarkson, W.A. (2006) Influence of gain-guiding on beam quality in a thermally aberrated end-pumped Nd:YVO4 amplifier At 2nd EPS-QEOD EUROPHOTON Conference on Solid-State and Fiber Coherent Light Sources. 10 - 15 Sep 2006.

Mackenzie, Jacob and Clarkson, W.A. (2006) Circular beams from slab lasers At 2nd EPS-QEOD Europhoton Conference. 10 - 15 Sep 2006. 1 pp.

Mackenzie, Jacob and Clarkson, W.A. (2006) Novel stable resonator concept for efficient axisymmetric output from lasers with a planar gain medium At Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS) 2006, United States. 21 - 25 May 2006. 2 pp.

Shen, D.Y., Sahu, Jayanta and Clarkson, W.A. (2006) Electro-optically Q-switched Er:YAG laser in-band pumped by an Er,Yb fiber laser At Advanced Solid State Photonics (ASSP) 2006. 29 Jan - 01 Feb 2006. 3 pp.

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.) At Photonics West, United States. 27 - 28 Jan 2003. , pp. 50-59. (doi:10.1117/12.478310).

Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2008) Impact of energy-transfer-upconversion on the performance of hybrid Er:YAG lasers At SPIE 6871 : Photonics West 2008. 19 - 24 Jan 2008. 8 pp, pp. 1-8. (doi:10.1117/12.761301).

Mackenzie, J.I. and Clarkson, W.A. (2008) Circular output from a high power Nd:YLF slab laser At SPIE 6871 : Photonics West. 19 - 24 Jan 2008. 8 pp, pp. 1-8. (doi:10.1117/12.759662).

So, Sik, Mackenzie, Jacob I., Shepherd, David P. and Clarkson, William A. (2008) High-power slab-based Tm:YLF laser for in-band pumping of Ho:YAG At SPIE 6871 : Photonics West. 19 - 24 Jan 2008. 10 pp. (doi:10.1117/12.761822).

Kim, J.W., Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2008) High-power in-band pumped Er:YAG laser at 1617 nm Optics Express, 16, (8), pp. 5807-5812. (doi:10.1364/OE.16.005807).

Kim, J.W., Jelger, P., Sahu, J.K., Laurell, F. and Clarkson, W.A. (2008) High-power and wavelength-tunable operation of an Er,Yb fiber laser using a volume Bragg grating Optics Letters, 33, (11), pp. 1204-1206.

Zhang, Z., Boyland, A.J., Sahu, J.K., Ibsen, M. and Clarkson, W.A. (2008) Single-frequency Tm-doped fiber master-oscillator power-amplifier with 10W linearly-polarized output at 1943 nm At CLEO/QELS 2008. 04 - 09 May 2008.

Chan, J.S.P., Wang, P., Sahu, J.K. and Clarkson, W.A. (2008) Impact of modal interference on the output beam properties of large-core cladding-pumped fiber amplifiers At CLEO/QELS 2008. 04 - 09 May 2008.

Pearson, L., Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2008) High-power widely-tunable thulium-doped fiber Master-Oscillator Power-Amplifier around 2 microns At CLEO/QELS 2008. 04 - 09 May 2008.

Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2008) Efficient single-axial-mode operation of an Er:YAG ring laser at 1645 nm At CLEO/QELS 2008. 04 - 09 May 2008.

Kim, J.W., Jelger, P., Wang, P., Sahu, J.K., Laurell, F. and Clarkson, W.A. (2008) Wavelength selection in high-power cladding-pumped Er, Yb and Yb fibre lasers using volume Bragg gratings At CLEO/QELS 2008. 04 - 09 May 2008.

Wang, P., Clarkson, W.A., Shen, D.Y., Cooper, L.J. and Sahu, J.K. (2006) Novel concepts for high-power fibre lasers At Photonics Europe 2006. 03 - 07 Apr 2006. (doi:10.1117/12.668261).

Shen, D.Y., Pearson, L., Sahu, J.K. and Clarkson, W.A. (2007) 11W broadband amplified spontaneous emission fiber source at 2 microns At Advanced Solid-State Photonics (ASSP) 2007. 28 - 31 Jan 2007.

Wang, P., Sahu, J.K. and Clarkson, W.A. (2006) High power broadband Ytterbium-doped fiber superfluorescent source At 2nd EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources (Europhoton 2006). 10 - 15 Sep 2006.

Sahu, J.K., Yoo, S., Boyland, A.J., Webb, A., Kalita, M.P., Maran, J.-N., Jeong, Y., Nilsson, J., Clarkson, W.A. and Payne, D.N. (2009) Fiber design for high power fiber lasers At Photonics West, United States. 24 - 29 Jan 2009.

Mackenzie, J.I., Bailey, W.O.S., Shen, D.Y., Pearson, L., Yang, Y. and Clarkson, W.A. (2009) Tm:fiber laser in-band pumping cryogenically-cooled Ho:YAG laser At LASE 2009: Part of SPIE Photonics West. 24 - 29 Jan 2009. (doi:10.1117/12.809165).

Jelger, P., Wang, P., Sahu, J.K., Laurell, F. and Clarkson, W.A. (2008) High-power linearly-polarized operation of a cladding-pumped Yb fibre laser using a volume Bragg grating for wavelength selection Optics Express, 16, (13), pp. 9507-9512.

Shen, D.Y., Pearson, L., Wang, P., Sahu, J.K. and Clarkson, W.A. (2008) Broadband Tm-doped superfluorescent fiber source with 11 W single-ended output power Optics Express, 16, (15), pp. 11021-11026.

Zhang, Z., Shen, D.Y., Boyland, A.J., Sahu, J.K., Clarkson, W.A. and Ibsen, M. (2008) High-power Tm-doped fiber distributed-feedback laser at 1943 nm Optics Letters, 33, (18), pp. 2059-2061.

Vasilyev, Sergey, Schiller, Stephan, Nevsky, Alexander, Grisard, Arnaud, Faye, David, Lallier, Eric, Zhang, Z., Boyland, A.J., Sahu, J.K., Ibsen, M. and Clarkson, W.A. (2008) Broadly tunable single-frequency cw mid-infrared source with milliwatt-level output based on difference-frequency generation in orientation-patterned GaAs Optics Letters, 33, (13), pp. 1413-1415.

Kim, J.W., Mackenzie, J.I. and Clarkson, W.A. (2009) Influence of energy-transfer-upconversion on threshold pump power in quasi-three-level solid-state lasers Optics Express, 17, (14), pp. 11935-11943. (doi:10.1364/OE.17.011935).

Kim, J.W., Boyland, A.J., Webb, A.S., Sahu, J.K. and Clarkson, W.A. (2008) High power tunable Er Yb ribbon fibre laser At Europhoton Conference (EP08). 30 Aug - 05 Sep 2008.

Clarkson, W.A. (2008) Fibre-laser-pumped-erbium-solid-state lasers At LPHYS'08 17th International Laser Physics Workshop. 30 Jun - 04 Jul 2008.

Clarkson, W.A., Shen, Deyuan and Sahu, Jayanta (2006) High-power fiber-bulk hybrid lasers In SPIE Photonics West LASE 2006. (doi:10.1117/12.660930).

Clarkson, W.A. (2005) Fibre-bulk hybrid lasers At 2nd Symposium on Infrared Materials and Technologies, United States. 21 - 22 Nov 2005.

Clarkson, W.A., Shen, D.Y., Wang, P., Cooper, L.J., Nilsson, J. and Sahu, J.K. (2005) High-power fiber lasers: recent developments and future prospects At Optics and Optoelectronics Conference, Poland. 30 Aug - 01 Sep 2005.

Clarkson, W.A. (1999) Diode-pumped lasers - Latest developments At Optik-Elektronic '99, Sweden.

Hardman, P.J., Clarkson, W.A. and Hanna, David (1999) Efficient operation of an acousto-optically induced unidirectional and single-frequency Q-switched Nd:YLF laser In Proceedings of Advanced Solid State Lasers (ASSL). Optical Society of America..

Hayward, R.A., Clarkson, W.A. and Hanna, D.C. (1999) High power diode pumped Tm:YAG laser at 2µm At 14th National Quantum Electronics Conference (QE14), United Kingdom. 06 - 09 Sep 1999.

Kendall, T.M.J., Clarkson, W.A., Hardman, P.J., Ross, G.W. and Hanna, D.C. (1999) Simultaneous multiple line optical parametric oscillators based on periodically-poled lithium niobate At Quantum Electronics Conference (QE14), United Kingdom. 06 - 09 Sep 1999.

Clarkson, W.A., Felgate, N.S., Hanna, D.C. and Butterworth, S.D. (1999) Q-switched operation of a Nd:YAG laser at 946nm and efficient second harmonic generation in non-critically phase-matched lithium triborate At 14th National Quantum Electronics (QE14), United Kingdom. 06 - 09 Sep 1999.

Grudinin, A.B., Nilsson, J., Turner, P.W., Renaud, C.C., Clarkson, W.A. and Payne, D.N. (1999) Single clad coiled optical fibre for high power lasers and amplifiers In Summaries of Papers Presented at the Conference on Lasers and Electro-Optics (CLEO '99). Institute of Electrical and Electronics Engineers., CPD26/1-CPD26/2. (doi:10.1109/CLEO.1999.834627).

Offerhaus, H.L., Alvarez-Chavez, J.A., Nilsson, J., Turner, P.W., Clarkson, W.A. and Richardson, D.J. (1999) Multi-mJ, multi-Watt Q-switched fiber laser In, Summaries of Papers Presented at the Conference on Lasers and Electro-Optics (CLEO '99). Conference on Lasers and Electro-Optics (CLEO '99) Piscataway, United States, Institute of Electrical and Electronics Engineers (doi:10.1109/CLEO.1999.834611).

Clarkson, W.A., Felgate, N.S. and Hanna, D.C. (1999) Power-scaling and frequency-doubling of a diode-bar-pumped Nd:YAG laser at 946nm At Novel Lasers & Devices Topical Meeting: Conference on Lasers and Electro Optics (CLEO)/Europe, Germany. 10 - 17 Jun 1999.

Alvarez-Chavez, J.A., Grudinin, A.B., Nilsson, Johan, Turner, P.W. and Clarkson, W.A. (1999) Mode selection in high power cladding pumped fibre lasers with tapered section In Proceedings of CLEO/QELS '99. Institute of Electrical and Electronics Engineers., pp. 247-248.

Alvarez-Chavez, J.A., Nilsson, J., Turner, P.W., Clarkson, W.A., Renaud, C.C., Selvas-Aguilar, R., Hanna, D.C. and Grudinin, A.B. (1999) Single-polarization narrow-linewidth wavelength-tunable high-power diode-pumped double-clad ytterbium-doped fiber laser At Novel Lasers and Devices Topical Meeting CLEO/Europe, Germany. 13 - 17 Jun 1999.

Nilsson, Johan, Alvarez-Chavez, J.A., Turner, P.W., Clarkson, W.A., Renaud, C.C. and Grudinin, A.B. (1999) Widely tunable high-power diode-pumped double-clad Yb3+-doped fiber laser In Proceedings of Advanced Solid State Lasers (ASSL). Optical Society of America..

Clarkson, W.A., Felgate, N.S., Hanna, D.C. and Butterworth, S.D. (1999) Frequency doubling of a diode-bar-pumped Nd:YAG laser at 946nm using non-critically phase-matched lithium triborate at high temperature At Conference on Lasers and Electro Optics (CLEO) 99, United States. 23 - 28 May 1999.

Clarkson, W.A. (1998) High power visible solid-state lasers At Conference on Lasers and Electro-Optics, United Kingdom. 13 - 18 Sep 1998.

Tropper, A.C., Bonner, C.L., Brown, C.T.A., Shepherd, D.P., Clarkson, W.A. and Hanna, D.C. (1998) Diode-bar-pumped planar waveguide lasers At Lasers and Electro-Optics Society Annual Meeting (LEOS '98), United States. 01 - 04 Dec 1998. , pp. 115-116. (doi:10.1109/LEOS.1998.737760).

Clarkson, W.A., Felgate, N.S. and Hanna, D.C. (1998) Simple technique for compensation of stress-induced birefringence in high-power diode-end-pumped lasers In, Lasers and Electro-Optics (CLEO 98). Technical Digest. Conference on Lasers and Electro-Optics (CLEO 98) Piscataway, United States, Institute of Electrical and Electronics Engineers p. 103. (doi:10.1109/CLEO.1998.675922).

Hardman, P.J., Pollnau, M., Clarkson, W.A. and Hanna, D.C. (1998) The influence of energy-transfer upconversion on thermal lensing in end-pumped Nd:YLF and Nd:YAG lasers At Conference on Lasers and Electro-Optics (CLEO 98)/Europe, United Kingdom. 13 - 18 Sep 1998.

Bonner, C.L., Brown, C.T.A., Shepherd, D.P., Clarkson, W.A., Harris, R.D., Tropper, A.C., Hanna, David and Ferrand, B. (1998) In-plane diode-bar pumped, multi-Watt, Nd:Y3Al5O12 planar waveguide lasers At Conference on Lasers and Electro Optics (CLEO 98), United Kingdom. 13 - 18 Sep 1998.

Clarkson, W.A., Felgate, N.S. and Hanna, D.C. (1998) Simple method for compensation of thermally-induced birefringence in high-power solid-state lasers At Conference on Lasers and Electro-Optics, United Kingdom. 13 - 18 Sep 1998.

Pollnau, M., Clarkson, W.A. and Hanna, D.C. (1998) Thermal lensing in end-pumped Nd:YAG under lasing and non-lasing conditions In, Summaries of Papers Presented at the Conference on Lasers and Electro-Optics, 1998. Conference on Lasers and Electro-Optics (CLEO '98) New York, US, Institute of Electrical and Electronics Engineers pp. 100-101. (doi:10.1109/CLEO.1998.675920).

Bonner, C.L., Brown, C.T.A., Shepherd, D.P., Clarkson, W.A., Tropper, A.C., Hanna, D.C. and Ferrand, B. (1998) A diode-bar pumped high power planar Nd:YAG waveguide laser At Conference on Lasers and Electro-Optics (CLEO 98), United States. 03 - 08 May 1998. , pp. 355-356.

Clarkson, W.A., Felgate, N.S. and Hanna, D.C. (1998) Resonator design considerations for power-scaling TEMoo operation of end-pumped solid-state lasers At OSA Trends in Optics and Photonics - Advanced Solid-state Lasers (ASSL 98), United States. 31 Jan - 02 Feb 1998. 4 pp.

Clarkson, W.A. (1998) Design considerations for high-power TEM00 operation of end-pumped solid-state lasers In, Ustugov, Vladimir I. (eds.) Laser Optics '98: Solid State Lasers. Bellingham, US, The International Society for Optical Engineering pp. 2-12. (doi:10.1117/12.334774).

Pollnau, M., Ross, G.W., Clarkson, W.A., Smith, P.G.R., Britton, P.J. and Hanna, D.C. (1997) 946nm Nd:YAG laser frequency doubled with periodically-poled LiNbO3 At Conference of the Swiss Physical Society, Switzerland.

Brown, C.T.A., Shepherd, D.P., Harris, R.D., Bonner, C.L., Tropper, A.C., Clarkson, William, Hanna, D.C. and Ferrand, B. (1997) Towards a high-power, brightness-enhanced, polarised, diode-bar pumped planar waveguide laser At Optical Society of America Annual Meeting, United States. 17 - 18 Oct 1997.

Shepherd, D.P., Brown, C.T.A., Bonner, C.L., Clarkson, W.A., Hanna, D.C. and Tropper, A.C. (1997) 1.5W diode-pumped monolithic planar waveguide laser At Conference on Lasers and Electro-Optics (CLEO)/Pacific Rim '97 Chiba, Japan. 14 - 18 Jul 1997.

Clarkson, W.A. and Hanna, D.C., (1998) Resonator design considerations for efficient operation of solid-state lasers end-pumped by high-power diode-bars Kossowsky, R., Jelínek, Miroslav and Novak, Josef (eds.) In Optical Resonators - Science and Engineering Optical Resonators - Science and Engineering: Proceedings of the NATO Advanced Research Workshop on Optical Resonators - Theory and Design. Springer., pp. 327-361.

Pollnau, M., Ross, G.W., Clarkson, W.A., Smith, P.G.R., Britton, P.E. and Hanna, D.C. (1997) 450mW of blue (473nm) power via second harmonic generation in periodically-poled lithium niobate At Conference on Lasers and Electro-Optics ( CLEO Pacific Rim '97), Japan. 14 - 18 Jul 1997.

Bollig, C., Hayward, R.A., Clarkson, W.A. and Hanna, D.C. (1997) Multi-watt room-temperature diode-bar pumped Tm:YAG and intracavity-pumped Ho:YAG lasers At 9th Conference on Coherent Laser Radar, Sweden. 23 - 27 Jun 1997.

Hayward, R.A., Bollig, C., Clarkson, W.A. and Hanna, D.C. (1997) High power diode bar pumped Tm:YAG laser and intracavity pumped Ho:YAG laser At Quantum Electronics Conference (QE13), United Kingdom. 08 - 11 Sep 1997.

Ross, G.W., Pollnau, M., Smith, P.G.R., Britton, P.E., Clarkson, W.A. and Hanna, D.C. (1997) High-power blue light generation in periodically-poled lithium niobate At Quantum Electronics Conference (QE13), United Kingdom. 08 - 11 Sep 1997.

Hardman, P.J., Clarkson, W.A., Martin, K.I. and Hanna, D.C. (1997) High-power diode-bar-pumped intracavity-frequency-doubled Nd:YAG and Nd:YLF ring lasers At Quantum Electronics Conference (QE13), United Kingdom. 08 - 11 Sep 1997.

Paschotta, R., Moore, N., Clarkson, W.A., Tropper, A.C. and Hanna, D.C. (1997) Thulium-doped upconversion fibre-laser with 230mW of 480nm blue output At Quantum Electronics Conference (QE13), United Kingdom. 08 - 11 Sep 1997.

Moore, N., Clarkson, W.A. and Hanna, D.C. (1997) Efficient 1123nm diode-bar pumped Nd:YAG laser At Thirteenth National Quantum Electronics Conference (QE13), United Kingdom. 08 - 13 Sep 1997.

Hardman, P.J., Pollnau, M., Clarkson, W.A. and Hanna, D.C. (1997) Thermal lensing in high-power end-pumped Nd:YLF lasers At Quantum Electronics Conference (QE13), United Kingdom. 08 - 11 Sep 1997.

Loh, W.H., Butterworth, S.D., Clarkson, W.A., Samson, B.N. and de Sandro, J.P. (1997) Efficient operation and characterization of distributed feedback Er3+-doped fiber lasers via the 520-nm transition band In Conference on Optical Fiber Communication. IEEE., pp. 294-295. (doi:10.1109/OFC.1997.719904).

Paschotta, R., Moore, N., Clarkson, W.A., Tropper, A.C. and Hanna, D.C. (1997) 230 mW of blue light from thulium:ZBLAN upconversion fibre laser At Conference on Lasers and Electro-Optics (CLEO '97), United States. 18 - 23 May 1997.

Moore, N., Clarkson, W.A. and Hanna, D.C. (1997) High power 1123nm Nd:YAG laser longitudinally pumped by a 7W diode bar At Conference on Lasers and Electro-Optics (CLEO '97), United States. 18 - 23 May 1997.

Hardman, P.J., Clarkson, W.A., Martin, K.I., Butterworth, S.D. and Hanna, D.C. (1997) Mode-hop-free tuning in high-power intracavity-frequency-doubled Nd:YAG and Nd:YLF ring lasers In Summaries of Papers Presented at the Conference on Lasers and Electro-Optics (CLEO '97). Institute of Electrical and Electronics Engineers., p. 520. (doi:10.1109/CLEO.1997.603534).

Kern, M.A., Clarkson, W.A. and Hanna, David (1997) Resonator design considerations for high-power TEMoo operation of a Nd:YAG laser at 1.3µm end-pumped by a diode-bar At Conference on Lasers and Electro-Optics (CLEO '97), United States. 18 - 23 May 1997.

Bollig, C., Hayward, R.A., Kern, M.A., Clarkson, W.A. and Hanna, D.C. (1997) High power operation of an intracavity-pumped Ho:YAG laser at 2.1µm At Conference on Lasers and Electro-Optics (CLEO '97), United States. 18 - 23 May 1997.

Clarkson, W.A. (1997) High-power end-pumped solid-state lasers with intracavity frequency doubling At Lasers '97, United States. 15 - 19 Dec 1997.

Pollnau, M., Hardman, P.J., Clarkson, W.A. and Hanna, D.C. (1997) Upconversion-dependent thermal lensing in Nd:YLF At Conference of the Swiss National Physical Society, Switzerland.

Pruneri, V., Koch, R., Kazansky, P.G., Clarkson, W.A., Russell, P.St.J. and Hanna, D.C. (1996) Highly-efficient cw blue light generation via first-order quasi-phase-matched frequency-doubling of a diode-pumped 946nm Nd:YAG laser In Advanced Solid State Lasers - Quasi-Phase Matching (1996). vol. 1, Optical Society of America..

Clarkson, W.A., Martin, K.I. and Hanna, D.C. (1996) Mode-hop suppression in intracavity frequency-doubled solid-state lasers At Half-day Technical Meeting on Advances in Solid-State Lasers, United Kingdom.

Hardman, P.J., Clarkson, W.A., Hanna, D.C. and Friel, G.J. (1996) High-power Nd:YLF laser pumped by diode lasers At Half-day Technical Meeting on Advances in Solid-State Lasers, United Kingdom.

Koch, R.L., Clarkson, W.A. and Hanna, D.C. (1996) High-power diode-pumped cw Nd:YAG laser at 946nm and 938.5nm At Annual Meeting of the German Physical Society, Germany. 11 - 15 Mar 1996.

Bollig, C., Clarkson, W.A., Schmundt, D. and Hanna, D.C. (1996) High power room temperature operation of a Tm:YAG laser longitudinally pumped by a 20W diode bar In Proceedings of Conference on Lasers and Electro-Optics 1996. Institute of Electrical and Electronics Engineers., p. 56.

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1996) Suppression of mode-hopping in a single-frequency intracavity-frequency-doubled Nd:YAG ring laser In Proceedings of Conference on Lasers and Electro-Optics Europe, 1996. Institute of Electrical and Electronics Engineers., p. 72. (doi:10.1109/CLEOE.1996.562083).

Bollig, C., Schmundt, D., Clarkson, W.A. and Hanna, D.C. (1996) Efficient single-frequency operation and frequency stabilisation of a Q-switched diode pumped Nd:YAG laser At Annual Meeting of the German Physical Society, Germany. 11 - 15 Mar 1996.

Schmundt, D., Bollig, C., Clarkson, W.A. and Hanna, D.C. (1996) Er-Yb-glass ring laser for single-frequency and Q-switched operation At Annual Meeting of the German Physical Society, Germany. 11 - 15 Mar 1996.

Pruneri, V., Butterworth, S.D., Kazansky, P.G., Clarkson, W.A., Moore, N. and Hanna, D.C., (1996) Highly-efficient second harmonic generation of green light from picosecond pulses in bulk quasi-phase-matched-lithium niobate Payne, S. and Pollack, C. (eds.) In Advanced Solid State Lasers (ASSL). Optical Society of America..

Clarkson, W.A., Bollig, C., Hardman, P.J. and Hanna, D.C. (1996) High-power diode-bar-pumped Nd:YLF laser at 1.053-µm In Summaries of papers presented at the Conference on Lasers and Electro-Optics, 1996. IEEE., p. 323. (doi:10.1109/CLEO.1996.864738).

Friel, G.J., Clarkson, W.A. and Hanna, D.C. (1996) High gain Nd:YLF amplifier end-pumped by a beam-shaped broad-stripe diode laser At Conference on Lasers and Electro-Optics (CLEO '96). 02 - 07 Jun 1996.

Butterworth, S.D., Clarkson, W.A., Moore, N., Friel, G.J. and Hanna, D.C. (1996) Synchronous pumping of an optical parametric oscillator using an amplified quasi-cw pump envelope In Proceedings of Advanced Solid State Lasers (ASSL). Optical Society of America..

Clarkson, W.A. (1995) Beam-shaping and focusing scheme for high power diode bars At Institute of Physics Quantum Electronics Group Meeting: Direct applications of High Power Laser Diodes, United Kingdom.

Clarkson, W.A. (1995) Focusing scheme for high power diode bars and its application to end-pumped Nd:YAG lasers At The Rank Prize Funds: Mini-Symposium on Solid-State Lasers.

Caffey, D. and Clarkson, W.A. (1995) Non-imaging diode array beam-shaper At Optical Society of America Topical Meeting, United States. 01 Jan 1995.

Bollig, C., Butterworth, S.D., Clarkson, W.A. and Hanna, D.C. (1995) Feedback-controlled prelasing: a technique for pulse amplitude and frequency stabilisation of Q-switched lasers At Quantum Electronics Conference (QE12), United Kingdom. 04 - 08 Sep 1995.

Clarkson, W.A., Martin, K.I. and Hanna, D.C. (1995) High power single frequency operation and efficient intracavity frequency doubling of a Nd:YAG ring laser pumped by a diode bar At 12th UK National Quantum Electronics Conference (QE12), United Kingdom. 04 - 08 Sep 1995.

Clarkson, W.A., Koch, R.L., Martin, K.I. and Hanna, D.C. (1995) High power diode-bar-pumped Nd:YAG laser at 946nm At 12th UK National Quantum Electronics Conference (QE12), United Kingdom. 04 - 08 Sep 1995.

Bollig, C., Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1995) Stable high repetition rate single frequency Q-switched Nd:YAG ring laser At Conference on Lasers and Electro-Optics, United States. 21 - 26 May 1995. 6 pp.

Bollig, C., Clarkson, W.A., Hanna, D.C., Lovering, D.S. and Jones, G.C.W. (1995) Acousto-optically induced single-frequency operation of a monolithic Nd:phosphate glass ring laser At Conference on Lasers and Electro-Optics, United States. 21 - 26 May 1995. 7 pp.

Clarkson, W.A., Koch, R.L., Martin, K.I. and Hanna, David (1995) High power 946nm Nd:YAG laser, longitudinally-pumped by a diode bar At Conference on Lasers and Electro-Optics (CLEO), United States. 21 - 26 May 1995.

Clarkson, W.A., Martin, K.I. and Hanna, D.C. (1995) High-power single-frequency operation and efficient intracavity frequency doubling of a Nd:YAG ring laser, end-pumped by a 20W diode bar At Conference on Lasers and Electro-Optics, United States. 21 - 26 May 1995. 7 pp.

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1994) Enhanced single-frequency performance of a unidirectional ring laser by non-concentric pumping At ASSL'94: Advanced Solid-state Lasers, United States. 07 - 10 Feb 1994.

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1994) Diode laser bar beam shaping technique At Conference on Lasers & Electro-Optics Europe & The 5th European Quantum Electronics Convention CLEO EUROPE/EQEC, Netherlands. 28 Aug - 02 Sep 1994.

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1994) Novel beam shaping technique for high power diode bars At CLEO '94: Conference on Lasers and Electro-Optics, United States. 08 - 13 May 1994.

Clarkson, W.A., Martin, K.I., Hanna, D.C. and Neilson, A.B. (1993) Some characteristics of unidirectional lasing in ring lasers using the acousto-optic effect At EQEC'93: European Quantum Electronics Conference, Italy. 10 - 13 Sep 1993.

Martin, K.I., Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1993) The effect of residual spatial hole burning in unidirectional ring lasers At QE-11: 11th National Quantum Electronics Conference, United Kingdom. 30 Aug - 02 Sep 1993.

Clarkson, W.A., Hanna, D.C., Lovering, D.S. and Jones, G.C.W. (1993) Unidirectional Nd-doped phosphate glass ring laser using the acousto-optic effect in the laser medium At QE-11: 11th National Quantum Electronics Conference, United Kingdom. 30 Aug - 02 Sep 1993.

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1992) Unidirectional operation of a ring laser by resonating the diffracted beams in a travelling-wave acousto-optic modulator At Conference on Lasers & Electro-Optics (CLEO '92), United States. 10 - 15 May 1992.

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1992) Explanation of the mechanism for acousto-optically induced unidirectional operation of a ring laser At CLEO '92: Conference on Lasers & Electro-Optics, United States. 10 - 15 May 1992.

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1992) Unidirectional ring laser operation via the acousto-optic effect an explanation of the mechanism At ASSL92: Advanced Solid State Lasers, United States. 17 - 19 Feb 1992.

Clarkson, W.A. and Hanna, D.C. (1991) Acousto-optically induced single-mode and Q-switched operation of a miniature diode-pumped Nd:YLF ring laser At CLEO'91 Conference Lasers and Electro-optics, United States. 01 Jan 1991.

Clarkson, W.A. and Hanna, D.C. (1991) Unidirectional single mode and Q-switched operation of a diode-pumped Nd:YLF ring laser using the acousto-optic effect At Advanced Solid State Lasers (ASSL 91), United States. 01 Jan 1991.

Clarkson, W.A. and Hanna, D.C. (1989) Diode pumped Q-swltched single frequency Nd:YAG ring laser At CLEO '89 Conference on Lasers and Electro-Optics, United States. 01 Apr 1989.

Moore, Nicholas, Clarkson, W.Andrew, Hanna, David C., Lehmann, Stefan and Bosenberg, Jens (1999) Efficient operation of a diode-bar-pumped Nd:YAG laser on the low gain 1123nm line Applied Optics, 38, (27), pp. 5761-5764. (doi:10.1364/AO.38.005761).

Clarkson, W.A., Felgate, N.S. and Hanna, D.C. (1999) Simple method for reducing the depolarisation loss due to thermally-induced birefringence in solid-state lasers Optics Letters, 24, (12), pp. 820-822. (doi:10.1364/OL.24.000820).

Bollig, C., Hayward, R.A., Clarkson, William and Hanna, David (1998) 2W Ho:YAG laser intracavity pumped by a diode-pumped Tm:YAG laser Optics Letters, 23, (22), pp. 1757-1759. (doi:10.1364/OL.23.001757).

Shepherd, D.P., Bonner, C.L., Brown, C.T.A., Clarkson, W.A., Tropper, A.C., Hanna, D.C. and Meissner, H.E. (1999) High-numerical-aperture, contact-bonded, planar waveguides for diode-bar-pumped lasers Optics Communications, 160, (1-3), pp. 47-50. (doi:10.1016/S0030-4018(98)00653-1).

Pollnau, M., Hardman, P.J., Kern, M.A., Clarkson, W.A. and Hanna, D.C. (1998) Upconversion-induced heat generation and thermal lensing in Nd:YLF and Nd:YAG Physical Review B, 58, (24), pp. 16076-16092. (doi:10.1103/PhysRevB.58.16076).

Hardman, P.J., Clarkson, W.A. and Hanna, D.C. (1998) High power diode-bar-pumped intracavity-frequency-doubled Nd:YLF ring laser Optics Communications, 156, (1-3), pp. 49-52. (doi:10.1016/S0030-4018(98)00347-2).

Hardman, P.J., Clarkson, W.A., Friel, G.J., Pollnau, M. and Hanna, David (1999) Energy-transfer upconversion and thermal lensing in high-power end-pumped Nd:YLF laser crystals IEEE Journal of Quantum Electronics, 35, (4), pp. 647-655. (doi:10.1109/3.753670).

Clarkson, W.A., Hardman, P.J. and Hanna, D.C. (1998) High power diode-bar-end-pumped Nd:YLF laser at 1.053µm Optics Letters, 23, (17), pp. 1363-1365. (doi:10.1364/OL.23.001363).

Bollig, C., Clarkson, William, Hayward, R.A. and Hanna, David (1998) Efficient high-power Tm:YAG laser at 2µm end-pumped by a diode-bar Optics Communications, 154, (1-3), pp. 35-38. (doi:10.1016/S0030-4018(98)00311-3).

Bonner, C.L., Brown, C.T.A., Shepherd, D.P., Clarkson, W.A., Tropper, A.C. and Hanna, David (1998) A diode-bar end-pumped, high power, Nd:Y3Al5O12 planar waveguide laser Optics Letters, 23, (12), pp. 942-944. (doi:10.1364/OL.23.000942).

Ross, G.W., Pollnau, M., Smith, P.G.R., Clarkson, W.A., Britton, P.E. and Hanna, D.C. (1998) Generation of high-power blue light in periodically-poled LiNbO3 (PPLN) Optics Letters, 23, (3), pp. 171-173. (doi:10.1364/OL.23.000171).

Paschotta, R., Moore, N., Clarkson, W.A., Tropper, A.C., Hanna, D.C. and Maze, G. (1997) 230 mW of blue light from a thulium-doped upconversion fiber laser IEEE Journal of Selected Topics in Quantum Electronics, 3, (4), pp. 1100-1102. (doi:10.1109/2944.649548).

Pollnau, M., Hardman, P.J., Clarkson, W.A. and Hanna, D.C. (1998) Upconversion lifetime quenching and ground-state bleaching in Nd3+:LiYF4 Optics Communications, 147, (1-3), pp. 203-211. (doi:10.1016/S0030-4018(97)00524-5).

Koch, R., Clarkson, W.A., Hanna, D.C., Jiang, S., Myers, M.J., Rhonehouse, D., Hamlin, S.J., Griebner, U. and Schönnagel, H. (1997) Efficient room temperature cw Yb:glass laser pumped by a 946nm Nd:YAG laser Optics Communications, 134, (1-6), pp. 175-178. (doi:10.1016/S0030-4018(96)00537-8).

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1997) High-power single-frequency operation, at 1064nm and 1061.4nm of a Nd:YAG ring laser end-pumped by a beam-shaped diode bar Optics Communications, 135, (1-3), pp. 89-92. (doi:10.1016/S0030-4018(96)00593-7).

Martin, Kevin I., Clarkson, W.Andrew and Hanna, David C. (1997) Stable, high-power, single frequency generation at 532nm from a diode-bar-pumped Nd:YAG ring laser with intracavity LBO frequency doubler Applied Optics, 36, (18), pp. 4149-4152. (doi:10.1364/AO.36.004149).

Loh, W.H., Butterworth, S.D. and Clarkson, W.A. (1996) Efficient distributed feedback erbium-doped germanosilicate fibre laser pumped in the 520 nm band Electronics Letters, 32, (22), pp. 2088-2089. (doi:10.1049/el:19961389).

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1997) Self-suppression of axial-mode-hopping via intracavity second-harmonic generation Optics Letters, 22, (6), pp. 375-377. (doi:10.1364/OL.22.000375).

Ibsen, M., Zhang, Z., Pearson, L., Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2010) High Power Single-Frequency Fibre Lasers: Design and Applications At 15th Optoelectronics and Communications Conference (OECC). 05 - 09 Jul 2010.

Pruneri, V., Koch, R., Kazansky, P.G., Clarkson, W.A., Russell, P.St.J. and Hanna, D.C. (1995) 49mW of cw blue light generated by first-order quasi-phase-matched frequency doubling of a diode-pumped 946nm Nd:YAG laser Optics Letters, 20, (23), pp. 2375-2377.

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1997) Increased single-frequency power from end-pumped ring laser by pump beam displacement Optics Communications, 133, (1-6), pp. 180-184. (doi:10.1016/S0030-4018(96)00433-6).

Koch, R.L., Clarkson, W.A. and Hanna, D.C. (1996) Diode pumped CW Nd:YAG laser operating at 938.5nm Electronics Letters, 32, (6), pp. 553-554. (doi:10.1049/el:19960400).

Bollig, C., Clarkson, W.A., Hanna, D.C., Lovering, D.S. and Jones, G.C.W. (1997) Single-frequency operation of a monolithic Nd:glass ring laser via the acousto-optic effect Optics Communications, 133, (1-6), pp. 221-224. (doi:10.1016/S0030-4018(96)00492-0).

Clarkson, W.A., Koch, R. and Hanna, D.C. (1996) Room-temperature diode-bar-pumped Nd:YAG laser at 946nm Optics Letters, 21, (10), pp. 737-739. (doi:10.1364/OL.21.000737).

Martin, K.I., Clarkson, W.A. and Hanna, D.C. (1996) 3W of single-frequency output at 532nm by intracavity frequency doubling of a diode-bar-pumped Nd:YAG ring laser Optics Letters, 21, (12), pp. 875-877. (doi:10.1364/OL.21.000875).

Martin, K.I., Clarkson, William and Hanna, David (1996) Limitations imposed by spatial hole burning on the single-frequency performance of unidirectional ring lasers Optics Communications, 125, (4-6), pp. 359-368. (doi:10.1016/0030-4018(95)00710-5).

Clarkson, W.A. and Hanna, D.C. (1996) Efficient Nd:YAG laser end-pumped by a 20W diode-laser-bar Optics Letters, 21, (12), pp. 869-871. (doi:10.1364/OL.21.000869).

Butterworth, S.D., Clarkson, W.A., Moore, N., Friel, G.J. and Hanna, D.C. (1996) High-power quasi-cw laser pulses via high-gain diode-pumped bulk amplifiers Optics Communications, 131, (1-3), pp. 84-88. (doi:10.1016/0030-4018(96)00267-2).

Clarkson, W.A. and Hanna, D.C. (1996) Two-mirror beam-shaping technique for high power diode bars Optics Letters, 21, (6), pp. 375-377. (doi:10.1364/OL.21.000375).

Bollig, C., Clarkson, W.A. and Hanna, D.C. (1995) Stable high repetition rate, single-frequency Q-switched operation via feedback suppression of relaxation oscillation Optics Letters, 20, (12), pp. 1383-1385. (doi:10.1364/OL.20.001383).

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1996) Unidirectional operation of a ring laser via the acousto-optic effect IEEE Journal of Quantum Electronics, 32, (2), pp. 311-325. (doi:10.1109/3.481879).

Clarkson, W.A., Hanna, D.C., Lovering, D.S. and Jones, G.C.W. (1994) Acousto-optically induced unidirectional and single frequency operation of a Nd:glass ring laser using the acousto-optic effect in the laser medium Optics Letters, 19, (24), pp. 2059-2061. (doi:10.1364/OL.19.002059).

Neilson, A.B., Clarkson, W.A. and Hanna, D.C. (1993) Single frequency CW and Q-switched operation of a diode-pumped Nd:YAG 1.3µm ring laser Optics Letters, 18, (17), pp. 1426-1428. (doi:10.1364/OL.18.001426).

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1992) Acousto-optically induced unidirectional operation of a ring laser a feedback mechanism Optics Communications, 91, (56), pp. 365-370. (doi:10.1016/0030-4018(92)90361-T).

Clarkson, W.A., Neilson, A.B. and Hanna, D.C. (1992) Explanation of the mechanism for acousto-optically induced unidirectional operation of a ring laser Optics Letters, 17, (8), pp. 601-603.

Clarkson, W.A. and Hanna, D.C. (1991) Single frequency Q-switched operation of a diode-pumped Nd:YLF ring laser Optics Communications, 84, (12), pp. 51-54. (doi:10.1016/0030-4018(91)90027-B).

Clarkson, W.A. and Hanna, D.C. (1991) Acousto-optically induced unidirectional single mode operation of a q-switched miniature Nd:YAG ring laser Optics Communications, 81, (6), pp. 375-378. (doi:10.1016/0030-4018(91)90601-9).

Clarkson, W.A. and Hanna, D.C. (1989) Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser Optics Communications, 73, pp. 469-474. (doi:10.1016/0030-4018(89)90464-1).

Clarkson, W.A. and Hanna, D.C. (1989) Effects of transverse mode profile on slope efficiency and relaxation oscillations in a longitudinally pumped laser Journal of Modern Optics, 36, (4), pp. 483-498. (doi:10.1080/09500348914550561).

Kim, J.W., Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2009) Fiber-laser-pumped Er:YAG lasers IEEE Journal of Selected Topics in Quantum Electronics, 15, (2), pp. 361-371.

Pearson, L., Kim, J.W., Zhang, Z., Ibsen, M., Sahu, J.K. and Clarkson, W.A. (2010) High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifier Optics Express, 18, (2), pp. 1607-1612. (doi:10.1364/OE.18.001607).

Mackenzie, J.I. and Clarkson, W.A. (2009) Managing thermal effects in high-power solid-state lasers At Living with Thermal Management. 05 Mar 2009.

Mackenzie, J.I., Kim, J.W., Pearson, L., Bailey, W.O.S., Yang, Y. and Clarkson, W.A. (2010) Two-micron cryogenically-cooled solid-state lasers: recent progress and future prospects At SPIE 7578 Photonics West 2010 : Solid State Lasers XIX: Technology and Devices. 23 - 28 Jan 2010. , 7578F. (doi:10.1117/12.842132).

Mackenzie, J.I., Kim, J.W., Pearson, L., Bailey, W.O.S., Yang, Y. and Clarkson, W.A. (2009) Cryogenically-cooled two-micron solid-state lasers: recent results and future prospects At 5th International Symposium on Laser, Scintillator and Non Linear Optical Materials (ISLNOM-5). 03 - 05 Sep 2009.

Kim, J.W., Mackenzie, J.I., Parisi, D., Veronesi, S., Tonelli, M. and Clarkson, W.A. (2010) Efficient in-band pumped Ho:LuLiF4 2µm laser Optics Letters, 35, (3), pp. 420-422. (doi:10.1364/OL.35.000420).

Zhang, Z., Boyland, A.J., Sahu, J.K., Clarkson, W.A. and Ibsen, M. (2009) Single frequency Tm-doped fibre DBR laser at 1943nm At European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC) 2009.

Kim, J.W., Mackenzie, J.I., Bailey, W.O.S., Pearson, L., Shen, D.Y., Yang, Y. and Clarkson, W.A. (2009) Cryogenically-cooled Ho:YAG laser in-band pumped by a Tm fibre laser At European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC). 14 - 19 Jun 2009.

Kim, J.W, Mackenzie, J.I and Clarkson, W.A (2009) Impact of energy-transfer-upconversion on performance in quasi-three-level solid-state lasers At CLEO/Europe - EQEC 2009. 1 pp.

Kim, J.W., Boyland, A.J., Sahu, J.K. and Clarkson, W.A. (2009) Ho-doped silica fibre laser in-band pumped by a Tm-doped fibre laser At European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC). 14 - 19 Jun 2009.

Pearson, L., Kim, J.W., Zhang, Z., Sahu, J.K., Ibsen, M. and Clarkson, W.A. (2009) High-power single-frequency thulium-doped fiber master-oscillator power-amplifier at 1943nm At Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC 2009). 2 pp.

Zhang, Z., Boyland, A.J., Sahu, J.K., Clarkson, W.A. and Ibsen, M. (2011) High-power single-frequency thulium-doped fiber DBR laser at 1943 nm IEEE Photonics Technology Letters, 23, (7), pp. 417-419. (doi:10.1109/LPT.2011.2106491).

Richardson, D.J., Nilsson, J. and Clarkson, W.A. (2010) High power fiber lasers: current status and future perspectives Journal of the Optical Society of America B, 27, (11), pp. 63-92. (doi:10.1364/JOSAB.27.000B63).

Kang, L., Copner, N.J., Gawith, C.B.E., Knight, I.G., Pfeiffer, Hans-Ulrich and Musk, Bob, (2010) 532nm laser sources based on intracavity frequency doubling of multi-edge-emitting diode lasers Clarkson, W. Andrew, Hodgson, Norman and Shori, Ramesh K. (eds.) At SPIE 7578 Photonics West 2010 : Solid State Lasers XIX: Technology and Devices. 23 - 28 Jan 2010. , pp. 7578-7637. (doi:10.1117/12.846565).

Daniel, J.M.O., Chan, J.S.P., Kim, J.W., Sahu, J.K., Ibsen, M. and Clarkson, W.A. (2011) Novel technique for mode selection in a multimode fiber laser Optics Express, 19, (13), pp. 12434-12439.

Cieslak, R. and Clarkson, W.A. (2011) Internal resonantly enhanced frequency doubling of continuous-wave fiber lasers Optics Letters, 36, (10), pp. 1896-1898. (doi:10.1364/OL.36.001896).

Clarkson, W.A., Pearson, L., Zhang, Z., Kim, J.W., Shen, D.Y., Boyland, A.J., Sahu, J.K. and Ibsen, M. (2009) High power thulium doped fiber lasers At Optical Fiber Communication Conference, United States. 21 - 25 Mar 2009. , OWT1. (doi:10.1364/OFC.2009.OWT1).

Kim, J.W., Mackenzie, J.I., Hayes, J.R. and Clarkson, W.A. (2011) High power Er:YAG laser with radially-polarized Laguerre-Gaussian (LG_01) mode output Optics Express, 19, (15), pp. 14526-14531. (doi:10.1364/OE.19.014526).

Kim, J.W., Mackenzie, J. and Clarkson, W.A. (2010) High-energy Q-switched fibre-laser pumped Er:YAG laser with TEMoo output At 4th EPS-QEOD Europhoton Conference, Germany. 29 Aug - 03 Sep 2010.

Chan, J.S.P., Daniel, J.M.O., Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2010) Single mode operation of a large mode area thulium fibre laser using a novel wavelength selective mode filter At 4th EPS-QEOD Europhoton Conference, Germany. 29 Aug - 03 Sep 2010.

Ross, G.W., Felgate, N.S., Clarkson, W.A., Smith, P.G.R., Britton, P.E. and Hanna, D.C. (1998) Red and blue light generation by frequency doubling and tripling in periodically-poled LiNbO3 At CLEO '98, United States. 03 - 08 May 1998.

Mackenzie, J.I., Murugan, G.S., Suzuki, T., Ohishi, Y., Yu, A.W. and Abshire, J.B., (2012) Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth Clarkson, W. Andrew and Shori, Ramesh K. (eds.) At SPIE 8235 : Photonics West 2012, United States. 21 - 26 Jan 2012. 8 pp. (doi:10.1117/12.908003).

Cieslak, R. and Clarkson, W.A. (2012) Efficient nonlinear frequency conversion scheme for cladding-pumped fiber lasers At SPIE Photonics West 2012, United States. 21 - 26 Jan 2012.

Kim, J.W., Mackenzie, J.I., Hayes, J.R. and Clarkson, W.A. (2012) High-power Er:YAG laser with quasi-top-hat output beam Optics Letters, 37, (9), pp. 1463-1465. (doi:10.1364/OL.37.001463).

Cieslak, R., Sahu, J.K. and Clarkson, W.A. (2010) Wavelength-tunable internally-frequency-doubled Yb-doped fiber laser At 4th EPS-QEOD Europhoton Conference, Germany. 29 Aug - 03 Sep 2010.

Cieslak, R., Sahu, J.K. and Clarkson, W.A. (2010) Efficient intracavity frequency doubling of an Yb-doped fiber laser using an internal resonant enhancement cavity At CLEO/QELS 2010: Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference, United States. 16 - 21 May 2010.

Daniel, J.M.O., Chan, J.S.P., Kim, J.W., Ibsen, M., Sahu, J.K. and Clarkson, W.A. (2010) Novel technique for mode selection in a large-mode-area fiber laser At CLEO/QELS 2010: Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference, United States. 16 - 21 May 2010.

Kim, J.W., Mackenzie, J.I., Parisi, D., Veronesi, S., Tonelli, M. and Clarkson, W.A. (2010) Efficient Ho:LuLiF4 laser in-band pumped by a Tm fiber laser At Laser Science to Photonic Applications (CLEO/QELS 2010), United States. 16 - 21 May 2010. 2 pp.

Kim, J.W., Mackenzie, J.I., Parisi, D., Veronesi, S., Tonelli, M. and Clarkson, W.A. (2010) Efficient fiber-laser pumped Ho:LuLiF4 laser At Photonics Europe (EPE 10), Belgium. 12 - 16 Apr 2010.

Clarkson, W.A. and Cieslak, R. (2011) Novel resonantly-enhanced nonlinear frequency conversion scheme for cladding-pumped fiber lasers At Physics of Lasers: International Laser Physics Workshop, Bosnia and Herzegovina. 11 - 15 Jul 2011.

Kim, J.W., Mackenzie, J.I., Hayes, J.R. and Clarkson, W.A. (2011) High-power fibre-laser-pumped Er:YAG laser with top-hat output beam At CLEO/Europe-EQEC 2011, Georgia. 22 - 26 May 2011. (doi:10.1109/CLEOE.2011.5942440).

Kim, J.W., Mackenzie, J.I., Hayes, J.R. and Clarkson, W.A. (2011) High-energy Q-switched Er:YAG laser with Laguerre-Gaussian (LG01) mode output At CLEO/Europe-EQEC 2011, Georgia. 22 - 26 May 2011. (doi:10.1109/CLEOE.2011.5942442).

Shen, D.Y., Zhang, Z., Boyland, A.J., Sahu, J.K., Clarkson, W.A. and Ibsen, M. (2007) Thulium-doped distributed feedback fiber laser with >0.3 W output at 1935 nm At BGPP 2007: Bragg Gratings, Photosensitivity and Poling in Glass, Canada. 02 - 06 Sep 2007.

Cieslak, Rafal and Clarkson, William Andrew (2011) Internally-frequency-doubled Yb fiber laser with 15W CW green output At European Conference on Lasers and Electro-Optics (CLEO/EQEC-Europe 2011), Germany. 22 - 26 May 2011. (doi:10.1109/CLEOE.2011.5943147).

Kim, J.W., Mackenzie, J.I., Hayes, J. and Clarkson, W.A. (2011) High-power radially-polarized Er:YAG laser with Laguerre-Gaussian (LG01)mode output At CLEO/QELS 2011: Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference, United States. 01 - 06 May 2011. (doi:10.1364/CLEO_SI.2011.CMY2).

Cieslak, Rafal and Clarkson, William (2011) Power-scalable internal frequency doubling scheme for continuous-wave fiber lasers At SPIE Photonics West 2011: LASE, United States. 22 - 27 Jan 2011. 2 pp.

Daniel, J.M.O., Tokurakawa, M. and Clarkson, W.A. (2012) Power-scalable wavelength-agile fibre laser source at two-microns At 5th EPS-QEOD Europhoton Conference, Sweden. 26 - 31 Aug 2012.

Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2011) High-energy Q-switched operation of a fiber-laser-pumped Er:YAG laser Applied Physics B, 105, (2), pp. 263-267.

Kim, J.W., Sahu, J.K. and Clarkson, W.A. (2012) High-power tunable Er,Yb ribbon fiber laser Optics Communications, 285, (6), pp. 1362-1365. (doi:10.1016/j.optcom.2011.11.059).

Kim, Hyuntai, Kim, Jongki, Jung, Yongmin, Vazquez-Zuniga, Luis Alonso, Lee, Seung Jong, Choi, Geunchang, Oh, Kyunghwan, Wang, Pu, Clarkson, W.A. and Jeong, Yoonchan (2012) Simple and reliable light launch from a conventional single-mode fiber into a helical-core fiber through an adiabatically tapered splice Optics Express, 20, (23), pp. 25562-25571. (doi:10.1364/OE.20.025562).

Kim, J.W. and Clarkson, W.A. (2013) Selective generation of Laguerre-Gaussian (LG0n) mode output in a diode-laser pumped Nd:YAG laser Optics Communications, 296, pp. 109-112. (doi:10.1016/j.optcom.2013.01.046).

Wang, Pu and Clarkson, W.A. (2009) Tunable Yb-doped fiber amplified spontaneous emission source At Conference on Lasers and Electro-optics (CLEO), United States. 31 May - 05 Jun 2009. , CFM6. (doi:10.1364/CLEO.2009.CFM6).

Daniel, J.M.O. and Clarkson, W.A. (2013) Rapid, electronically controllable transverse mode selection in a multimode fiber laser Optics Express, 21, (24), pp. 29442-29448. (doi:10.1364/OE.21.029442).

Eckold, M., Mackenzie, Jacob and Clarkson, William (2014) 100W Nd:YAG rotating cavity laser At SPIE Photonics West, United States. 01 - 06 Feb 2014.

Mackenzie, J.I, Murugan, G.S., Yu, A.W. and Abshire, J.B., (2013) Er-doped planar waveguides for power amplifier applications Shori, Ramesh and Clarkson, W.Andrew (eds.) At SPIE Photonics West, United States. 02 - 07 Feb 2013. , p. 859908. (doi:10.1117/12.2004053).

Simakov, N., Hemming, A., Clarkson, W.A., Carter, A. and Haub, J. (2013) Tuneable operation of core and cladding pumped holmium fibre lasers At CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013.

Eckold, M., Mackenzie, J.I. and Clarkson, W.A. (2013) Power scaling concept for solid-state lasers based on a rotating cavity configuration At CLEO/QELS 2013, United States. 09 - 14 Jun 2013.

Eckold, M., Mackenzie, J.I. and Clarkson, W.A. (2013) Rotating cavity laser: A new approach for power scaling solid state lasers At CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013. (doi:10.1109/CLEOE-IQEC.2013.6800642).

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), pp. 10544-10549. (doi:10.1364/OE.22.010544).

Lin, Di, Daniel, J.M.O. and Clarkson, W.A. (2013) Controlling the handedness of directly excited Laguerre Gaussian modes in a solid-state laser At CLEO-Europe-IQEC 2013, Germany. 12 - 16 May 2013. (doi:10.1109/CLEOE-IQEC.2013.6800599).

Daniel, J.M.O. and Clarkson, W.A. (2013) Bandwidth-controllable tunable Q-switched Thulium fibre laser At CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013.

Tokurakawa, M., Daniel, J.M.O., Cheung, S., Liang, H. and Clarkson, W.A. (2013) Ultra-broadband wavelength swept Tm-Doped fiber laser At CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013.

Griebner, U., Koch, R., Schönnagel, H., Jiang, S., Myers, M.J., Rhonehouse, D., Hamlin, S.J., Clarkson, W.A. and Hanna, D.C. (1996) Laser performance of a new ytterbium doped phosphate laser glass At Advanced Solid State Lasers (ASSL 96), United States. 31 Jan - 03 Feb 1996. 4 pp.

Loh, W.H., Hewak, D., Petrovich, M.N., Hayes, J.R., Stewart, W. and Clarkson, W.A. (2012) Emerging optical fibre technologies with potential defence applications At Electro-optical Remote Sensing, Photonic technologies, and applications VI, United Kingdom. 24 - 27 Sep 2012.

Daniel, J.M.O. and Clarkson, W.A. (2012) Simple scheme for active mode selection in a multimode fibre oscillator At 5th EPS-QEOD Europhoton '12, Sweden. 26 - 31 Aug 2012.

Kim, J.W. and Clarkson, W.A. (2012) Selective excitation of Laguerre-Gaussian (LG0n) doughnut modes in a diode-laser end-pumped solid-state laser At 5th EPS-QEOD Europhoton '12, Sweden. 26 - 31 Aug 2012.

Daniel, J.M.O. and Clarkson, W.A. (2012) Generation of pseudo-radially-polarized beams in a diode pumped solid-state laser At CLEO/QELS 2012, United States. 06 - 11 May 2012.

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 At IEEE Summer Topical Meeting, Canada. 14 - 16 Jul 2014.

Lin, Di, Daniel, Jae M.O., Gecevičius, Mindaugas, Beresna, Martynas, Kazansky, P.G. and Clarkson, W.A. (2014) Cladding-pumped ytterbium-doped fiber laser with radially polarized output Optics Letters, 39, (18), pp. 5359-5361. (doi:10.1364/OL.39.005359).

Lin, Di, Shardlow, P., Beresna, M., Kazansky, P.G. and Clarkson, W.A. (2014) Efficient conversion to radial polarization in the two-micron band using a continuously space-variant half-waveplate At 6th EPS-QEOD Europhoton Conference, Switzerland. 24 - 29 Aug 2014.

Lin, Di, Daniel, Jae M.O. and Clarkson, W.A. (2013) Single-frequency Nd:YAG laser with LG01 donut mode output At SPIE Photonics West, United States. 01 - 06 Feb 2013.

Lin, Di, Daniel, J.M.O., Gecevičius, M., Beresna, M., Kazansky, P.G. and Clarkson, W.A. (2014) High power radially-polarized Yb-doped fiber laser At 6th EPS-QEOD Europhoton Conference, Switzerland. 24 - 29 Aug 2014.

Simakov, Nikita, Hemming, Alexander, Clarkson, W.Andrew, Haub, John and Carter, Adrian (2013) A cladding-pumped, tunable holmium doped fiber laser Optics Express, 21, (23), pp. 28415-28422. (doi:10.1364/OE.21.028415). (PMID:24514352).

Daniel, J.M.O., Simakov, N., Shardlow, P.C. and Clarkson, W.A. (2014) Effect of seed linewidth on few-moded fiber amplifiers At Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, United States. 08 - 13 Jun 2014. (doi:10.1364/CLEO_SI.2014.STu2N.7).

Cheung, C.S., Daniel, J.M.O., Tokurakawa, M., Clarkson, W.A. and Liang, H. (2014) Optical coherence tomography in the 2µm wavelength regime for paint and other high opacity materials Optics Letters, 39, (22), pp. 6509-6512. (doi:10.1364/OL.39.006509).

Lin, Di, Daniel, J.M.O. and Clarkson, W.A. (2014) Controlling the handedness of directly excited Laguerre-Gaussian modes in a solid-state laser Optics Letters, 39, (13), pp. 3903-3906. (doi:10.1364/OL.39.003903).

Daniel, J.M.O., Simakov, N., Tokurakawa, M., Ibsen, M. and Clarkson, W.A. (2014) Ultra-short wavelength operation of a two-micron thulium fiber laser At CLEO '14, United States. 08 - 13 Jun 2014. (doi:10.1364/CLEO_SI.2014.SW1N.2).

Boyd, K., Simakov, N., Daniel, J.M.O., Swain, R., Mies, E., Hemming, A., Clarkson, W.A. and Haub, J. (2014) Novel technique for the CO2 laser fabrication of optical devices with sub-micrometer ablation depth precision At ECOC 2014 Conference, France. 21 - 25 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 At ECOC 2014 Conference, France. 21 - 25 Sep 2014.

Kim, D.J., Kim, J.W. and Clarkson, W.A. (2014) High-power master-oscillator power-amplifier with optical vortex output Applied Physics B, 117, (1), pp. 459-464. (doi:10.1007/s00340-014-5855-5).

Tokurakawa, M., Daniel, Jae M.O., Cheung, C.S., Liang, H. and Clarkson, W.A. (2014) Wavelength-swept Tm-doped fiber laser operating in the two-micron wavelength band Optics Express, 22, (17), pp. 20014-20019. (doi:10.1364/OE.22.020014).

Lin, Di and Clarkson, W.A. (2015) Polarization-dependent transverse mode selection in an Yb-doped fiber laser Optics Letters, 40, (4), pp. 498-501. (doi:10.1364/OL.40.000498).

Cheung, C.S., Daniel, J.M.O., Tokurakawa, M., Clarkson, W.A. and Liang, H. (2015) High resolution Fourier domain optical coherence tomography in the 2µm wavelength range using a broadband supercontinuum source Optics Express, 23, (3), pp. 1992-2001. (doi:10.1364/OE.23.001992).

Tokurakawa, M., Daniel, Jae M.O., Cheung, C.S., Liang, H. and Clarkson, W.A. (2015) Ultra-broadband wavelength-swept Tm-doped fiber laser using wavelength-combined gain stages Optics Express, 23, (1), pp. 471-476. (doi:10.1364/OE.23.000471).

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 At OFC'15, United States. 22 - 26 Mar 2015.

Lin, Di, Shardlow, P., Butler, A., Beresna, M., Kazansky, P.G. and Clarkson, W.A. (2015) Generation of radially-polarized and azimuthally-polarized beams in the two-micron band using a space-variant half-wave plate At SPIE Photonics West 2015, United States. 07 - 12 Feb 2015.

Lin, Di, Daniel, J.M.O., Gecevičius, M., Beresna, M., Kazansky, P.G. and Clarkson, W.A. (2014) Direct generation of radially-polarized output from an Yb-doped fiber laser At Conference on Lasers and Electro Optics (CLEO), United States. 08 - 13 Jun 2014. 2 pp. (doi:10.1364/CLEO_AT.2014.JW2A.22).

Kim, D.J., Kim, J.W. and Clarkson, W.A. (2013) Q-switched Nd:YAG optical vortex lasers Optics Express, 21, (24), pp. 29449-29454. (doi:10.1364/OE.21.029449).

Shardlow, P.C., Ward, J., Pannell, C., Valle, S. and Clarkson, W.A. (2015) Null-frequency-shift acousto-optic tunable filter for wavelength tuning of a Tm fibre laser At CLEO/Europe-EQEC 2015, Germany. 21 - 25 Jun 2015. 1 pp.

Billaud, A., Shardlow, P.C., Butler, A., Jain, D., Sahu, J.K. and Clarkson, W.A. (2015) High power spectrally-tailorable thulium-doped fibre amplified spontaneous emission source At CLEO/Europe-EQEC '15, Germany. 21 - 25 Jun 2015. 1 pp.

Shardlow, P.C., Standish, R., Sahu, J.K. and Clarkson, W.A. (2015) Cladding shaping of optical fibre preforms via CO2 laser machining At CLEO/Europe-EQEC '15, Germany. 21 - 25 Jun 2015. 1 pp.

Shardlow, P.C., Jain, D., Parker, Richard, Sahu, J.K. and Clarkson, W.A. (2015) Optimising Tm-doped silica fibres for high lasing efficiency At CLEO/Europe-EQEC '15, Germany. 21 - 25 Jun 2015. 1 pp.

Clarkson, W.A., Shen, D., Wang, P., Cooper, L.J., Nilsson, J. and Sahu, J.K. (2005) Power scaling of cladding-pumped Er, Yb-doped fiber lasers at 1.5µm At SPIE Conference on Lasers and Applications, Poland.

Hanna, D.C. and Clarkson, W.A. (1998) A review of diode-pumped lasers: advances in lasers and applications At 52nd Scottish Universities Summer School in Physics (SUSSP-52), United Kingdom. 05 - 13 Sep 1998.

Tokurakawa, Masaki, Daniel, Jae M.O. and Clarkson, W.A. (2014) Tm3+:KY(WO4)2 laser in-band pumped by a Tm fiber laser At Advanced Solid State Lasers (ASSL), China. 16 - 21 Nov 2014. (doi:10.1364/ASSL.2014.ATu2A.30).

Clarkson, W.A., Pearson, L., Zhang, Z., Kim, J.W., Shen, D.Y., Boyland, A.J., Sahu, J.K. and Ibsen, M. (2009) High power two-micron fiber source: recent progress and future prospects At EOS Topical Meeting on Lasers 2009, Italy. 27 - 30 Sep 2009.

Clarkson, W.A., Pearson, L., Zhang, Z., Kim, J.W., Shen, D.Y., Boyland, A., Sahu, J.K. and Ibsen, M. (2009) High power two-micron fiber lasers At MICS 2009, France. 08 - 23 Jun 2009.

Vasilyev, S., Schiller, S., Nevsky, A., Grisard, A., Faye, D., Lallier, E., Zhang, Z., Boyland, A.J., Sahu, J.K., Ibsen, M. and Clarkson, W.A. (2008) Broadly tunable sub-mW CW narrowband mid-IR laser source for molecular spectroscopy At Workshop on Modern Applications of Trapped Ions, France. 18 - 23 May 2008.

Vasilyev, S., Nevsky, A., Schiller, S., Grisard, A., Lallier, E., Faye, D.Y., Shen, D.Y., Zhang, Z., Boyland, A.J., Sahu, J.K., Clarkson, W.A. and Ibsen, M. (2007) Development of a mid-IR CW narrowband 5-15 micron tunable laser source for molecular spectroscopy At 20th Colloquium on High Resolution Molecular Spectroscopy, France. 03 - 07 Sep 2007.

Wang, Pu and Clarkson, W.A. (2007) High-power, single-mode, linearly polarized, ytterbium-doped fiber superfluorescent source Optics Letters, 32, (17), pp. 2605-2607. (doi:10.1364/OL.32.002605).

Shen, D.Y., Pearson, L., Sahu, J.K. and Clarkson, W.A. (2007) High power broadband Tm-doped superfluorescent fibre source at 2µm At CLEO/Europe - IQEC 2007, Germany. 17 - 22 Jun 2007.

Daniel, Jae M.O., Simakov, Nikita, Hemming, Alexander, Haub, John and Clarkson, W.Andrew (2015) A double clad Ytterbium fibre laser operating at 400°C At SPIE Photonics West 2015, United States. 07 - 12 Feb 2015. (doi:10.1117/12.2078192).

Daniel, J.M.O. and Clarkson, W.A. (2013) Electronically controllable mode selection in a multimode fiber oscillator At SPIE Photonics West 2013, United States. 01 - 06 Feb 2013.

Cheung, C.S., Tokurakawa, M., Daniel, J.M.O. and Clarkson, W.A. (2013) Long wavelength optical coherence tomography for imaging of painted objects At SPIE Optical Metrology 2013, Germany. 12 - 16 May 2013.

Tokurakawa, M., Daniel, J.M.O., Cheung, C.S., Liang, H. and Clarkson, W.A. (2014) Wavelength-swept Tm-doped fiber lasers At Conference on Lasers and Electro Optics (CLEO), United States. 08 - 13 Jun 2014.

Eckold, M., Smith, C.R., Mackenzie, J.I. and Clarkson, W.A. (2014) Power scaling of solid-state lasers using a rotating cavity configuration At 6th EPS-QEOD Europhoton Conference 2014, Switzerland. 24 - 29 Aug 2014.

Billaud, A., Shardlow, P.C., Daniel, J.M.O. and Clarkson, W.A. (2014) Spectrally-tailored thulium-doped fibre amplified spontaneous emission source at two-microns At 6th EPS-QEOD Europhoton Conference.

Clarkson, W.A. (2014) Recent developments in two-micron fibre lasers At NATO Set-210 Meeting on Infrared Laser Technology for Modern Battlefield Requirements, United Kingdom. 24 Jul 2014.

Boyd, Keiron, Rees, Simon, Simakov, Nikita, Daniel, Jae M.O., Swain, Robert, Mies, Eric, Hemming, Alexander, Clarkson, W.Andrew and Haub, John (2015) High precision 96 µm CO2 laser end-face processing of optical fibres Optics Express, 23, (11), pp. 15065-15071. (doi:10.1364/OE.23.015065).

Lin, Di, Shardlow, Peter, Beresna, Martynas, Kazansky, Peter and Clarkson, William (2015) Tm-doped fibre laser with radially-polarized output beam at 2 µm At 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, Germany. 21 - 25 Jun 2015.

Lin, Di and Clarkson, William (2015) Cladding-pumped Yb-doped fiber laser with vortex output beam At CLEO 2015, United States. 10 - 15 May 2015. (doi:10.1364/CLEO_SI.2015.STh4L.1).

Butler, Alex, Uren, Robin, Lin, Di, Hayes, John and Clarkson, William (2015) Simple technique for high-order ring-mode selection within solid-state laser resonators At The European Conference on Lasers and Electro-Optics 2015, Munich, Germany. 21 - 25 Jun 2015.

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 At Optical Fiber Communication Conference (OFC) 2016, Anaheim, CA. 20 - 24 Mar 2016.

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), pp. 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), pp. 13946-13956. (doi:10.1364/OE.24.013946).

Boyd, Keiron, Simakov, Nikita, Hemming, Alexander, Daniel, Jae, Swain, Robert, Mies, Eric, Rees, Simon, Clarkson, W.Andrew and Haub, John (2016) CO2 laser-fabricated cladding light strippers for high-power fiber lasers and amplifiers Applied Optics, 55, (11), pp. 2915-2920. (doi:10.1364/AO.55.002915).

Daniel, J.M.O., Simakov, N., Tokurakawa, M., Ibsen, M. and Clarkson, W.A. (2015) Ultra-short wavelength operation of a thulium fibre laser in the 1660-1750nm wavelength band Optics Express, 23, (14), pp. 18269-18276. (doi:10.1364/OE.23.018269).

Billaud, A., Shardlow, P.C., Boyd, K., Simakov, N., Hemming, A. and Clarkson, W.A. (2016) Enhanced pump absorption in double-clad fibres using localised laser-machined mode scramblers At 7th EPS-QEOD Europhoton Conference, Austria. 21 - 26 Aug 2016. 1 pp.

Billaud, Antonin, Shardlow, Peter C. and Clarkson, W.A. (2016) Wavelength-flexible thulium-doped fiber laser employing a digital micro-mirror device tuning element At Conference on Lasers and Electro-Optics 2016, San Jose, United States. 05 - 10 Jun 2016. 2 pp. (doi:10.1364/CLEO_SI.2016.SM3Q.3).

Smith, Callum, Beecher, Stephen, Mackenzie, Jacob and Clarkson, W.A. (2016) Amplification of a radially-polarised beam in an Yb:YAG thin slab At 7th EPS-QEOD Europhoton Conference, Austria. 21 - 26 Aug 2016. 1 pp.

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]

Eckold, Matthew, Mackenzie, Jacob and Clarkson, William (2017) Approach for power scaling solid-state lasers with intracavity motion Optics Letters, pp. 1-4. (doi:10.1364/OL.42.000775).

Clarkson, William, Lin, Di, Beresna, Martynas, Kazansky, Peter and Shardlow, Peter (2015) Cladding-pumped radially-polarized fibre laser At Advanced Solid State Lasers (ASSL), Germany. 04 - 09 Oct 2015.

Lin, Di, Baktash, Neda and Berendt, Martin et al. (2017) Radially- and azimuthally- polarized nanosecond Yb-doped MOPA system incoporating temporal shaping Optics Letters, 42, (9), pp. 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 At Conference on Lasers and Electro-Optics 2016, San Jose, United States. 05 - 10 Jun 2016. 2 pp. (doi:10.1364/CLEO_SI.2016.STh4O.3).

Lin, D. and Clarkson, W.A. (2016) Reduced thermal lensing in an end-pumped Nd:YVO4 laser using a ring-shaped pump beam At Conference on Lasers and Electro-Optics 2016, San Jose, United States. 05 - 10 Jun 2016. 2 pp. (doi:10.1364/CLEO_SI.2016.SM3M.5).

Shardlow, P.C., Simakov, N., Billaud, A., Daniel, J.M.O., Barua, P., Sahu, J., Hemming, A. and Clarkson, W.A. (2017) Holmium doped fibre optimised for resonant cladding pumping At CLEO/Europe - EQEC 2017, Munich, Germany. 25 - 29 Jun 2017.

Lin, Di and Clarkson, W. Andrew (2017) End-pumped Nd:YVO4 laser with reduced thermal lensing via the use of a ring-shaped pump beam Optics Letters

Smith, C.R., Beecher, S.J., Mackenzie, J.I. and Clarkson, W.A. (2017) Amplification of a radially polarised beam in an Yb:YAG thin-slab Applied Physics B, 123, (225) (doi:10.1007/s00340-017-6802-z).

Smith, Peter, Beecher, Stephen J., Mackenzie, Jacob and Clarkson, W.A. (2017) Radially-polarised beam amplification in an Yb:YAG thin-slab architecture At SPIE Photonics West, San Francisco, United States. 30 Jan - 01 Feb 2017. (doi:10.1117/12.2256298).

Daniel, Jae M.O., Simakov, Nikita, Hemming, Alexander, Clarkson, W.A. and Haub, John (2017) Effects of coating thickness on high power metal coated fibre lasers In Proceedings of SPIE. vol. 10083, (doi:10.1117/12.2250256).

Boyd, Keiron, Rees, Simon, Simakov, Nikita, Daniel, Jae M.O., Swain, Robert, Mies, Eric, Hemming, Alexander, Clarkson, W.A. and Haub, John (2016) Advances in CO2 laser fabrication for high power fibre laser devices Proceedings of SPIE, 9728 (doi:10.1117/12.2210884).

Daniel, Jae M.O., Simakov, Nikita, Hemming, Alexander, Clarkson, W.A. and Haub, John (2016) Passively cooled 405 W ytterbium fibre laser utilising a novel metal coated active fibre Proceedings of SPIE, 9728 (doi:10.1117/12.2210887).

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