Spherical distribution structure of the semiconductor laser diode stack for pumping

被引：0
|
作者：
赵天卓 [1 ]
余锦 [1 ]
刘洋 [1 ]
张雪 [1 ]
麻云凤 [1 ]
樊仲维 [1 ,2 ]
机构：
[1] Opto-Electronics System Department,The Academy of Opto-Electronics,Chinese Academy of Sciences
[2] Beijing GK Laser Technology Co.,Ltd
来源：
Journal of Semiconductors | 2011年 / 32卷 / 09期
基金：
国家高技术研究发展计划(863计划);
关键词：
semiconductor pump; laser diode array; beam shaping; coupling duct;
D O I：
暂无
中图分类号：
TN31 [半导体二极管];
学科分类号：
0805 ; 080501 ; 080502 ; 080903 ;
摘要：
A semiconductor laser diode stack is used for pumping and 8 semiconductor laser diode arrays of the stack are put on a sphere,and the output of every bar is specially off-axis compressed to realize high coupling efficiency.The output beam of this semiconductor laser diode stack is shaped by a hollow duct to the laser active medium.The efficiency of the hollow light pipe,which is used for semiconductor laser diode stack coupling,is analyzed by geometric optics and ray tracing.Geometric optics analysis diagnoses the reasons for coupling loss and guides the design of the structure.Ray tracing analyzes the relation between the structural parameters and the output characteristics of this pumping system,and guides parameter optimization.Simulation and analysis results show that putting the semiconductor laser diode arrays on a spherical surface can increase coupling efficiency, reduce the optimum duct length and improve the output energy field distribution.
引用
收藏
页码：50 / 53
页数：4
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