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Proceedings Paper

Passive coherent combination of all-fiber multichannel pulsed laser based on optical feed-back ring cavity
Author(s): Xiang Ji; Pu Zhou; XiaoLin Wang; HengWei Zhang; QiSheng Lu; YiJun Zhao
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Paper Abstract

Self-organized passive coherent beam combination of multichannel pulsed laser with all-fiber configuration is reported. The phase of multichannel Yb-doped pulsed fiber amplifiers is locked by optical feed-back ring cavity. The traditional disadvantage of energy dissipation to side lode for lower aperture filling is solved via all-fiber laser array with single-aperture configuration. Coherent beam combination of four pulsed fiber amplifiers is experimentally demonstrated. Variable pulsed laser can be obtained by adjusting a AOM,stable combination pulsed fiber laser with excellent temporal and spatial characteristic is achieved. The efficiency of coherent combination is up to 85.0%. This approach presented here provides a feasible technique for power scaling of high-power pulsed fiber laser and maintaining beam quality simultaneously.

Paper Details

Date Published: 17 September 2013
PDF: 7 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89041J (17 September 2013); doi: 10.1117/12.2034830
Show Author Affiliations
Xiang Ji, National Univ. of Defense Technology (China)
Unit 63880 of People's Liberation Army (China)
Pu Zhou, National Univ. of Defense Technology (China)
XiaoLin Wang, National Univ. of Defense Technology (China)
HengWei Zhang, National Univ. of Defense Technology (China)
Unit 63880 of People's Liberation Army (China)
QiSheng Lu, National Univ. of Defense Technology (China)
YiJun Zhao, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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