大功率半导体激光器阵列光束光纤耦合研究  

Analysis and Design of Fiber Coupled High Power Laser Diode Array

作　　者：周崇喜[1] 刘银辉[1] 谢伟民[1] 杜春雷[1] 

机构地区：[1]中国科学院光电技术研究所微细加工光学技术国家重点实验室,四川成都610209

出　　处：《中国激光》2004年第11期1296-1300,共5页Chinese Journal of Lasers

摘　　要：从半导体激光器的光参数积出发,给出了一种集光束准直、整形、聚焦及耦合的高功率半导体激光器阵列光束的光纤耦合方法。推导出了正交的两组准直微透镜阵列的面形公式;计算了准直光束的准直精度和聚焦光学系统参数。作为例子,给出一个光纤芯径为800μm,数值孔径037的光纤耦合高功率半导体激光器实验结果,其耦合效率大于53%。A method to couple high power laser diode array (LDA) beams into a single multi mode fiber which includs collimating, shaping, focusing and coupling is present based on the beam parameter product (BPP) of laser beam. The orthogonal surface equation of the collimating micro lenses array is derived, the divergence angles after collimating and the parameters of the focused lens are calculated. As a example, a high power fiber coupled LDA module with the core diameter of 800 μm and numerical aperture of 0.37 is gotten and the coupling efficiency is more than 53%.

关 键 词：激光技术 半导体激光器阵列 微透镜阵列 光束准直 光纤耦合 

分 类 号：TN818[电子电信—信息与通信工程]