双平行平面反射镜在激光二极管阵列光束整形中的应用  

Study of the Beam Shaping of Laser Diode Arrays Using Two Parallel Plane Mirrors

作　　者：王翠鸾[1] 韩淋[1] 吴芃[1] 刘媛媛[1] 李伟[1] 冯小明[1] 王勇刚[1] 刘素平[1] 马骁宇[1] 

机构地区：[1]中国科学院半导体研究所,北京100083

出　　处：《中国激光》2009年第5期1097-1100,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金面上项目(6057604)资助课题

摘　　要：为了实现激光二极管阵列(LDA)的高亮度光纤耦合输出,设计了一套简单有效的光求整形系统。首先采用快慢轴准直透镜压缩LDA的发散角,然后采用双平行平面反射镜光束整形装置,将压缩后的LDA慢轴方向的光束分为4束(也可以根据需要分为任意多束),并将4束子光束在快轴方向重新排列,最后通过聚焦系统,将整形后的光束耦合进入芯径600μm,数值孔径0.37的光纤。实验测得双平行平面反射镜整形装置的效率为98.87%,系统的整体效率为77.2%。该整形系统设计简单,效率高,具有很高的应用价值。In order to achieve high brightness fiber-coupled output of diode laser array, a simple but efficient system was designed. Firstly, the output beam from a laser diode arrays （LDA） was collimated by fast and slow axis collimation module. Secondly, the collimated beam in the slow axis was divided into 4 parts （any other amount of the divided parts if needed） by the beam-shaping set of two parallel plane mirrors, and then reordered in the fast axis. Finally, the shaped beams were focused into a fiber （φ600 μm, NA=0. 37） by a focusing lens. The beam-shaping efficiency was 98.87%, and the total system efficiency was 77.2 %. This beam-shaping system is simple but effective and useful.

关 键 词：激光技术 光束整形 双平行平面反射镜 激光二极管阵列 光纤耦合 高亮度 

分 类 号：TN248.4[电子电信—物理电子学]