Efficiency enhanced coherent combining of fiber lasers through mutual injection locking

Sheng-Ping Chen; Ze-Jin Liu; Xiao-Lin Wang; Jian-Qiu Cao; Jing Hou; Xiang-Ai Cheng; Wen-Yu Li; Wei-Hong Hua

doi:10.1117/12.797524

27 September 2008 Efficiency enhanced coherent combining of fiber lasers through mutual injection locking

Sheng-Ping Chen, Ze-Jin Liu, Xiao-Lin Wang, Jian-Qiu Cao, Jing Hou, Xiang-Ai Cheng, Wen-Yu Li, Wei-Hong Hua

Proceedings Volume 7100, Optical Design and Engineering III; 710020 (2008) https://doi.org/10.1117/12.797524
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

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.

Citation Download Citation

Sheng-Ping Chen, Ze-Jin Liu, Xiao-Lin Wang, Jian-Qiu Cao, Jing Hou, Xiang-Ai Cheng, Wen-Yu Li, and Wei-Hong Hua "Efficiency enhanced coherent combining of fiber lasers through mutual injection locking", Proc. SPIE 7100, Optical Design and Engineering III, 710020 (27 September 2008); https://doi.org/10.1117/12.797524

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