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Proceedings Paper

Multi-tone approach to SBS mitigation in narrow linewidth high power fiber amplifiers
Author(s): Clint Zeringue; Iyad Dajani; Chunte Lu; Christopher Vergien; Craig Robin
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Paper Abstract

We investigate theoretically multi-tone seeding of high power ytterbium-doped amplifiers using a numerical code that solves a two-point boundary problem. A large wavelength separation among the signals is used leading to efficient transfer of power through laser gain while increasing the stimulated Brillouin scattering threshold in the channel of interest. Two-tone and three-tone seeding configurations are considered. For two-tone seeding, it is shown that a combination of narrow linewidth and broadband signals employed in a co-propagating geometry can achieve the same level of SBS suppression as counter-pumping.

Paper Details

Date Published: 19 February 2009
PDF: 9 pages
Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71952I (19 February 2009); doi: 10.1117/12.808054
Show Author Affiliations
Clint Zeringue, Air Force Research Lab. (United States)
Iyad Dajani, Air Force Research Lab. (United States)
Chunte Lu, Air Force Research Lab. (United States)
Christopher Vergien, Air Force Research Lab. (United States)
Craig Robin, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 7195:
Fiber Lasers VI: Technology, Systems, and Applications
Denis V. Gapontsev; Dahv A. Kliner; Jay W. Dawson; Kanishka Tankala, Editor(s)

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