中国激光, 2004, 31 (11): 1296, 网络出版: 2006-06-12
大功率半导体激光器阵列光束光纤耦合研究 下载: 561次
Analysis and Design of Fiber Coupled High-Power Laser Diode Array
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 laser technique laser diode array micro-lenses array beam collimating fiber coupled
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800 μm,数值孔径0.37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%。
Abstract
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%.
周崇喜, 刘银辉, 谢伟民, 杜春雷. 大功率半导体激光器阵列光束光纤耦合研究[J]. 中国激光, 2004, 31(11): 1296. 周崇喜, 刘银辉, 谢伟民, 杜春雷. Analysis and Design of Fiber Coupled High-Power Laser Diode Array[J]. Chinese Journal of Lasers, 2004, 31(11): 1296.