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Proceedings Paper

Efficiency enhanced coherent combining of fiber lasers through mutual injection locking
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Paper Abstract

Coherent combination of fiber lasers through mutual injection locking is demonstrated experimentally in this paper. By moving the mutual injection couplers from the output port to the high reflection feedback port of the lasers, a modified combining configuration is constructed with obviously enhanced slope efficiency as compared with the conventional one. The laser efficiency increases from 29.7% to 37.8% by this modification. The corresponding maximum output power enhancement of the combined laser is 26.6%. This modification increases not only the individual child laser powers but also the combining efficiency. The physical connotation of the modification on the improvement of the laser performance has been discussed.

Paper Details

Date Published: 27 September 2008
PDF: 8 pages
Proc. SPIE 7100, Optical Design and Engineering III, 710020 (27 September 2008); doi: 10.1117/12.797524
Show Author Affiliations
Sheng-Ping Chen, National Univ. of Defense Technology (China)
Ze-Jin Liu, National Univ. of Defense Technology (China)
Xiao-Lin Wang, National Univ. of Defense Technology (China)
Jian-Qiu Cao, National Univ. of Defense Technology (China)
Jing Hou, National Univ. of Defense Technology (China)
Xiang-Ai Cheng, National Univ. of Defense Technology (China)
Wen-Yu Li, National Univ. of Defense Technology (China)
Wei-Hong Hua, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7100:
Optical Design and Engineering III
Laurent Mazuray; Rolf Wartmann; Andrew Wood; Jean-Luc Tissot; Jeffrey M. Raynor, Editor(s)

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