High power two-micron fibre lasers. / Clarkson, William A.; Abdolvand, A.; Shen, D. Y.; Hayward, R. A.; Cooper, L. J.; Williams, R. B.; Nilsson, J. .
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers: proceedings of SPIE 5120. ed. / K.M. Abramski; E.F. Plinski; W. Wolinski. Bellingham : SPIE-International Society for Optical Engineering, 2003. p. 482-489 (SPIE proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - CHAP
T1 - High power two-micron fibre lasers
A1 - Clarkson,William A.
A1 - Abdolvand,A.
A1 - Shen,D. Y.
A1 - Hayward,R. A.
A1 - Cooper,L. J.
A1 - Williams,R. B.
A1 - Nilsson,J.
AU - Clarkson,William A.
AU - Abdolvand,A.
AU - Shen,D. Y.
AU - Hayward,R. A.
AU - Cooper,L. J.
AU - Williams,R. B.
AU - Nilsson,J.
PB - SPIE-International Society for Optical Engineering
CY - Bellingham
PY - 2003
Y1 - 2003
N2 - <p>A double-clad thulium-doped silica fibre laser, pumped by two beam-shaped diode-bars operating at 787-790nm, has yielded 14W of single-mode output at similar to2mum, with a slope efficiency with respect to launched power of 46%. Using a tunable laser configuration, comprising an external cavity with a diffraction grating, a maximum output power of 10.5W at 1921nm has been obtained, and wavelength tuning at multi-watt power levels over 215nm from 1855 to 2070nm has been demonstrated. The prospects for further improvement in performance will be discussed. In addition, a simple approach for further scaling of power levels from fibre lasers in the two-micron regime, based on intracavity wavelength combining of multiple fibre lasers is described. In a preliminary demonstration, four cladding-pumped thulium-doped silica fibre lasers are wavelength-combined yielding an output power >14W. The prospects for further increase in output power via this approach will be discussed.</p>
AB - <p>A double-clad thulium-doped silica fibre laser, pumped by two beam-shaped diode-bars operating at 787-790nm, has yielded 14W of single-mode output at similar to2mum, with a slope efficiency with respect to launched power of 46%. Using a tunable laser configuration, comprising an external cavity with a diffraction grating, a maximum output power of 10.5W at 1921nm has been obtained, and wavelength tuning at multi-watt power levels over 215nm from 1855 to 2070nm has been demonstrated. The prospects for further improvement in performance will be discussed. In addition, a simple approach for further scaling of power levels from fibre lasers in the two-micron regime, based on intracavity wavelength combining of multiple fibre lasers is described. In a preliminary demonstration, four cladding-pumped thulium-doped silica fibre lasers are wavelength-combined yielding an output power >14W. The prospects for further increase in output power via this approach will be discussed.</p>
U2 - 10.1117/12.515806
DO - 10.1117/12.515806
M1 - Conference contribution
SN - 0-8194-4980-6
BT - XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
T2 - XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
A2 - Wolinski,W.
ED - Wolinski,W.
T3 - SPIE proceedings
T3 - en_GB
SP - 482
EP - 489
ER -