中国激光, 2009, 36 (8): 1951, 网络出版: 2009-08-13   

大发光面积激光二极管堆栈抽运结构

Large Area Laser Diode Stack Pumping Structure
赵天卓 1,2,3,*樊仲维 1,3陈亚楠 4麻云凤 1,2,3邱基斯 1,2,3冯承勇 1,2,3
作者单位
1 中国科学院光电研究院光电系统工程部, 北京 100190
2 中国科学院研究生院物理学院, 北京 100039
3 北京国科世纪激光技术有限公司, 北京 100085
4 光电系统信息控制技术国家级重点实验室, 河北 三河 065201
摘要
由于半导体激光器(LD)在快轴和慢轴两个方向上发散角的不一致和耦合结构的缩束作用, 从耦合结构输出的抽运光在经过空间传播后会发生劣化而降低效率。而通过调整激光二极管抽运堆栈结构中激光二极管阵列(LDA)的排布方式, 可以改善耦合结构出口后一定距离处光场的空间分布, 从而更好地保证抽运光与信号光的匹配。在通过对耦合结构出口的光场追迹分析后, 得到了激光二极管堆栈(LDS)排布结构对耦合结构出射光空间分布特性的影响。通过某工程的实验验证, 得到了良好的输出光斑和接近90%的传输效率。
Abstract
Because of the different divergences is in slow and fast axes of laser diodes (LD) and the compress of the coupling structure, the pumped beam output from the coupling structure will be deteriorated. and its efficiency will be reduced. Whereas this problem can be well solved by adjusting the position and direction of laser diode arrays (LDA) in the stack. After ray tracing and analyzing of the output beam, the affection of laser diode stack (LDS) structure on the output beam distribution can be gotten. The project experiment test gets a good output spot and a coupling efficiency of up to 90%.
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赵天卓, 樊仲维, 陈亚楠, 麻云凤, 邱基斯, 冯承勇. 大发光面积激光二极管堆栈抽运结构[J]. 中国激光, 2009, 36(8): 1951. Zhao Tianzhuo, Fan Zhongwei, Chen Yanan, Ma Yunfeng, Qiu Jisi, Feng Chengyong. Large Area Laser Diode Stack Pumping Structure[J]. Chinese Journal of Lasers, 2009, 36(8): 1951.

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