Multi-kilowatt single-mode ytterbium-doped large-core fiber laser
Multi-kilowatt single-mode ytterbium-doped large-core fiber laser
We have demonstrated a highly efficient cladding-pumped ytterbium-doped fiber laser, generating >2.1 kW of continuous-wave output power at 1.1 µm with 74% slope efficiency with respect to launched pump power. The beam quality factor (M2) was better than 1.2. The maximum output power was only limited by available pump power, showing no evidence of roll-over even at the highest output power. We present data on how the beam quality depends on the fiber parameter, based on our current and past fiber laser developments. We also discuss the ultimate power-capability of our fiber in terms of thermal management, Raman nonlinear scattering, and material damage, and estimate it to 10 kW
416-422
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Boyland, Alexander J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Chung, Seung-Hwan
15c649bb-36cf-41f1-bd11-b793538cfd38
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Payne, David N.
4f592b24-707f-456e-b2c6-8a6f750e296d
December 2009
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Boyland, Alexander J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Chung, Seung-Hwan
15c649bb-36cf-41f1-bd11-b793538cfd38
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Payne, David N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Jeong, Yoonchan, Boyland, Alexander J., Sahu, Jayanta K., Chung, Seung-Hwan, Nilsson, Johan and Payne, David N.
(2009)
Multi-kilowatt single-mode ytterbium-doped large-core fiber laser.
Journal of the Optical Society of Korea, 13 (4), .
(doi:10.3807/JOSK.2009.13.4.416).
Abstract
We have demonstrated a highly efficient cladding-pumped ytterbium-doped fiber laser, generating >2.1 kW of continuous-wave output power at 1.1 µm with 74% slope efficiency with respect to launched pump power. The beam quality factor (M2) was better than 1.2. The maximum output power was only limited by available pump power, showing no evidence of roll-over even at the highest output power. We present data on how the beam quality depends on the fiber parameter, based on our current and past fiber laser developments. We also discuss the ultimate power-capability of our fiber in terms of thermal management, Raman nonlinear scattering, and material damage, and estimate it to 10 kW
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Published date: December 2009
Additional Information:
Invited
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 163437
URI: http://eprints.soton.ac.uk/id/eprint/163437
ISSN: 1226-4776
PURE UUID: 4ba0e006-79eb-471e-82e5-e58ac7625bf1
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Date deposited: 25 Oct 2010 07:36
Last modified: 14 Mar 2024 02:45
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Author:
Yoonchan Jeong
Author:
Alexander J. Boyland
Author:
Jayanta K. Sahu
Author:
Seung-Hwan Chung
Author:
Johan Nilsson
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