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Proceedings Paper

Beam shaping and fiber coupling of high-power laser diode arrays
Author(s): Xiao-hui Ma; Xu Li; Guo-Jun Liu; Quanlin Shi; Desheng Xin; Jian-jia Zhang
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Paper Abstract

The extreme divergence and the astigmatism of the high power laser diode array (LDA) require optics with complex lens structure and high performance. A monolithic micro- optic system is designed to shape the beam of LDA and couple the output of LDA with low NA fiber. The structure and principle of the micro-optic system is described in detail. The actual performance of the micro-optic system is studied by measuring P-I properties for both fiber coupled output and the LDA output, and their dependences on deviations in x, y, z directions. The light output of 980nm, 19-emitter LDA is shaped by this micro-optic system and coupled into a fiber with 400µm diameter, Numerical Aperture (NA) 0.22. The overall efficiency is more than 60%. The main factors effecting coupling efficiency are analyzed.

Paper Details

Date Published: 17 January 2005
PDF: 4 pages
Proc. SPIE 5644, Optoelectronic Devices and Integration, (17 January 2005); doi: 10.1117/12.573649
Show Author Affiliations
Xiao-hui Ma, Changchun Univ. of Science and Technology (China)
Xu Li, Changchun Univ. of Science and Technology (China)
Guo-Jun Liu, Changchun Univ. of Science and Technology (China)
Quanlin Shi, Changchun Univ. of Science and Technology (China)
Desheng Xin, Changchun Univ. of Science and Technology (China)
Jian-jia Zhang, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5644:
Optoelectronic Devices and Integration
Hai Ming; Xuping Zhang; Maggie Yihong Chen, Editor(s)

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