High-power continuous-wave directly-diode-pumped fiber Raman lasers
High-power continuous-wave directly-diode-pumped fiber Raman lasers
We describe novel fiber Raman lasers pumped directly by spectrally combined high power multimode laser diodes at ~975 nm and emitting at ~1019 nm. With a commercial multimode graded-index fiber, we reached 20 W of laser output power with a record slope efficiency of 80%. With an in-house double-clad fiber, the beam quality improved to M2 = 1.9, albeit with lower output power and slope efficiency due to higher fiber loss. We believe this is the first publication of a fiber Raman laser cladding-pumped directly by diodes.
1323-1336
Yao, Tianfu
c9d63490-6362-4b10-a3ed-60372c4247b0
Achar Vasant, Harish
833a8dce-cb98-479c-a78d-f754883ff2fd
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
20 November 2015
Yao, Tianfu
c9d63490-6362-4b10-a3ed-60372c4247b0
Achar Vasant, Harish
833a8dce-cb98-479c-a78d-f754883ff2fd
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Yao, Tianfu, Achar Vasant, Harish, Sahu, Jayanta and Nilsson, Johan
(2015)
High-power continuous-wave directly-diode-pumped fiber Raman lasers.
Applied Sciences, 5 (4), .
(doi:10.3390/app5041323).
Abstract
We describe novel fiber Raman lasers pumped directly by spectrally combined high power multimode laser diodes at ~975 nm and emitting at ~1019 nm. With a commercial multimode graded-index fiber, we reached 20 W of laser output power with a record slope efficiency of 80%. With an in-house double-clad fiber, the beam quality improved to M2 = 1.9, albeit with lower output power and slope efficiency due to higher fiber loss. We believe this is the first publication of a fiber Raman laser cladding-pumped directly by diodes.
Text
applsci-05-01323(1).pdf
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Accepted/In Press date: 13 November 2015
e-pub ahead of print date: 20 November 2015
Published date: 20 November 2015
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 384974
URI: http://eprints.soton.ac.uk/id/eprint/384974
PURE UUID: 8fce929c-2658-4576-b421-4d44d08fa700
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Date deposited: 10 Dec 2015 14:29
Last modified: 15 Mar 2024 03:09
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Contributors
Author:
Tianfu Yao
Author:
Harish Achar Vasant
Author:
Jayanta Sahu
Author:
Johan Nilsson
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