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Proceedings Paper

Improving efficiency of spectral beam combining by optimizing reflectivity of output coupler for laser diode array
Author(s): Yongqi Chen; Pengfei Zhao; Yulong Wu; Yunfei Qi; Yonggang Zou; Xiaohui Ma; Li Xu; Xuechun Lin
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Paper Abstract

This paper reports a study on the relationship between the combining efficiency and reflectivity of output coupler of diode array in spectral beam combining. The combining efficiency is analyzed theoretically by using principle of the resonator. The simulation shows that high reflectivity will lead to low combining efficiency, and low reflectivity may cause the failure of wavelength locking. With increasing of the reflectivity of the OC, the combining efficiency changes like a downward parabola which has a maximum value of ~10%. The experiments demonstrate that the highest efficiency is obtained at a reflectivity of 10%, and the experimental results agree well with the theoretical analysis.

Paper Details

Date Published: 19 October 2016
PDF: 8 pages
Proc. SPIE 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration, 101521F (19 October 2016); doi: 10.1117/12.2247592
Show Author Affiliations
Yongqi Chen, Changchun Univ. of Science and Technology (China)
Institute of Semiconductors (China)
Pengfei Zhao, Institute of Semiconductors (China)
Yulong Wu, Changchun Univ. of Science and Technology (China)
Yunfei Qi, Changchun Univ. of Science and Technology (China)
Yonggang Zou, Changchun Univ. of Science and Technology (China)
Xiaohui Ma, Changchun Univ. of Science and Technology (China)
Li Xu, Changchun Univ. of Science and Technology (China)
Xuechun Lin, Institute of Semiconductors (China)


Published in SPIE Proceedings Vol. 10152:
High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration
Lijun Wang; Zhiping Zhou, Editor(s)

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