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Proceedings Paper

High-efficiency fiber-coupled module based on multi-single emitter photonic-band-crystal laser diodes
Author(s): Yang Chen; Hongwei Qu; Yufang Zhang; Yufei Wang; Xiaolong Ma; Wanhua Zheng
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Paper Abstract

High-efficiency, high-power and high-brightness, fiber-coupled modules based on semiconductor laser diodes have been important sources in many fields, such as fiber laser pumping, material processing and defense applications. The coupling efficiency of fiber-coupled module has been limited due to the large vertical divergent angle of conventional semiconductor laser diodes. We present a high coupling efficiency module by using photonic-band-crystal (PBC) laser diodes with narrow vertical divergent angle. Fourteen PBC single-emitter laser diodes are combined into a fiber with core diameter of 200 μm and numerical aperture (NA) of 0.22. A high and stability coupling efficiency of 88% and peak otuput power of 47W with the injection current of 5 A are obtained. A comparison with the coupling efficiency of conventional laser diodes module is also presented. And there is a 5% increase of fiber-coupled efficiency based on PBC laser diodes module compared to conventional semiconductor laser diodes module.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104572J (24 October 2017); doi: 10.1117/12.2284900
Show Author Affiliations
Yang Chen, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Hongwei Qu, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Yufang Zhang, Institute of Semiconductors (China)
Yufei Wang, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Xiaolong Ma, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Wanhua Zheng, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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