Double-cutting beam shaping technique for high-power diode laser area light source

被引：16

作者：

Huang, Zhihua ^{[1
,2
]}

Xiong, Lingling ^{[1
]}

Liu, Hui ^{[1
]}

Wang, Zhenfu ^{[1
]}

Zhang, Pu ^{[1
]}

Nie, Zhiqiang ^{[1
]}

Wu, Dihai ^{[1
]}

Liu, Xingsheng ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Focuslight Technol, Xian 710119, Peoples R China

来源：

OPTICAL ENGINEERING | 2013年 / 52卷 / 10期

关键词：

beam shaping; beam parameter product; laser diode; fiber coupling; STACK;

D O I：

10.1117/1.OE.52.10.106108

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new beam-shaping technique is proposed to improve the beam quality of a high-power diode laser area light source. It consists of two staggered prism arrays and a reflector array, which can cut the slow axis beam twice and rearrange the divided beams in fast axis to make the beam quality of both axes approximately equal. Furthermore, the beam transformation and compression can be carried out simultaneously, and the assembly error of this technique induced by the machining accuracy of prism's dimensions also can be greatly decreased. By this technique, a fiber-coupled system for one three-bar laser diode stack is designed and characterized. The experimental results demonstrate that the laser beams could be transformed into the required distribution with similar to 93.4% reshaped efficiency and coupled into a 400 mu m/0.22 NA fiber, which are consistent with the theory. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：6

共 20 条

[1] Goals and status of the German national research initiative BRIOLAS (brilliant diode lasers) [J].