Beam shaping and fiber coupling of high power laser diode arrays

被引：4
|
作者：
Ma, XH [1 ]
Xu, L [1 ]
Liu, GJ [1 ]
Shi, QL [1 ]
Xin, DS [1 ]
Zhang, JJ [1 ]
机构：
[1] ChangChun Univ Sci & Technol, Changchun, JiLin Province, Peoples R China
来源：
OPTOELECTRONIC DEVICES AND INTEGRATION, PTS 1 AND 2 | 2005年 / 5644卷
关键词：
high power laser diode arrays; beam shaping; micro-optic system; fiber coupling;
D O I：
10.1117/12.573649
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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-l 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 400 mu m diameter, Numerical Aperture (NA) 0.22. The overall efficiency is more than 60%. The main factors effecting coupling efficiency are analyzed.
引用
收藏
页码：545 / 548
页数：4
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