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Theoretical analysis of fused tapered side-pumping combiner for all-fiber lasers and amplifiers
Author(s): Chengmin Lei; Zilun Chen; Jinyong Leng; Yanran Gu; Jing Hou
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Paper Abstract

We report detailed theoretical analysis on the influence of the fused depth, launch mode and taper ratio on the performance of side-pumping combiner. The theoretical analysis indicates that the coupling efficiency and loss mechanism of the combiner is closely related to the fused depth, tapering ratio and the launch mode. Experimentally, we fabricate combiners consisting of two pump fibers (220/242 μm, NA=0.22) and a signal fiber (20/400 μm, NA=0.46). The combined pump coupling efficiency of two pump port is 97.2% with the maximum power handling of 1.8 kW and the insertion signal loss is less than 3%.

Paper Details

Date Published: 1 May 2017
PDF: 8 pages
Proc. SPIE 10192, Laser Technology for Defense and Security XIII, 101920N (1 May 2017); doi: 10.1117/12.2261405
Show Author Affiliations
Chengmin Lei, National Univ. of Defense Technology (China)
Zilun Chen, National Univ. of Defense Technology (China)
Jinyong Leng, National Univ. of Defense Technology (China)
Yanran Gu, National Univ. of Defense Technology (China)
Jing Hou, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10192:
Laser Technology for Defense and Security XIII
Mark Dubinskii; Stephen G. Post, Editor(s)

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