High power two-micron fibre lasers
High power two-micron fibre lasers
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 ~2nm, 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.
0819449806
Clarkson, William A.
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Abdolvand, A.
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Shen, D.Y.
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Hayward, R.A.
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Cooper, L.J.
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Williams, R.B.
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Nilsson, J.
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Clarkson, William A.
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Abdolvand, A.
afdd5ceb-903f-4eb0-8c8b-9d418763e07d
Shen, D.Y.
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Hayward, R.A.
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Cooper, L.J.
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Williams, R.B.
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Nilsson, J.
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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.
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, Wroclaw, Poland.
25 - 30 Aug 2002.
(doi:10.1117/12.515806).
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Conference or Workshop Item
(Paper)
Abstract
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 ~2nm, 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.
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e-pub ahead of print date: 2002
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(SPIE 5120)
Venue - Dates:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, Wroclaw, Poland, 2002-08-25 - 2002-08-30
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Local EPrints ID: 13736
URI: http://eprints.soton.ac.uk/id/eprint/13736
ISBN: 0819449806
PURE UUID: 257ca0d0-9f42-4238-927e-bd06070dea32
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Date deposited: 17 Jan 2005
Last modified: 16 Mar 2024 03:01
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Contributors
Author:
William A. Clarkson
Author:
A. Abdolvand
Author:
D.Y. Shen
Author:
R.A. Hayward
Author:
L.J. Cooper
Author:
R.B. Williams
Author:
J. Nilsson
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