974nm半导体激光器的光纤耦合研究  

Study on Fiber Coupling for 974nm Semiconductor Laser Diode

作　　者：刘洋洋[1] 杨瑞霞[1] 袁春生[2] 王英顺[2] 安振峰[2] 

机构地区：[1]河北工业大学信息工程学院,天津300401 [2]中国电子科技集团公司第十三研究所,河北石家庄050051

出　　处：《中国激光》2014年第11期17-22,共6页Chinese Journal of Lasers

基　　金：国家重大专项(2009ZX01005-001)

摘　　要：根据半导体激光器和单模光纤模场分布特点,用模式耦合理论研究了单模光纤与半导体激光器的耦合,结果表明将光纤端面制作成楔形微透镜可以使光纤与半导体激光器的耦合满足模场匹配和相位匹配的要求。用遗传算法对楔形光纤微透镜参数进行优化,得到楔角为88°,柱透镜半径为3.44μm,耦合距离为6.13μm时耦合效率达到最佳值,用Zemax光学仿真软件对耦合模型进行仿真,得到耦合效率为88.9%,耦合好的模块经激光点焊及高低温环境测试后,得到最大耦合效率为81.36%。实验结果与仿真结果相差不大,耦合输出功率满足了作为光纤激光器种子源的功率要求。According to the mode field distribution characteristics of semiconductor lasers and single mode fiber,the coupling of the single mode fiber and semiconductor laser is studied by the mode coupling theory,the results show that the fiber end face into a wedge micro lens can make the coupling of fiber and semiconductor laser meet the requirement of the mode field matching and phase matching.Micro lens parameters of wedge type fiber are optimized using the genetic algorithm,the result is that the coupling efficiency achieves the optimum value with wedge-angle of88°,cylinder lens radius of 3.44μm and coupling distance of 6.13μm,the coupling efficiency reaches 88.9% when using the Zemax optical simulation software to simulate the coupling model,the maximum coupling efficiency is81.36% after laser spot welding and the high and low temperature environment test.The experimental results are similar to the simulation results,the output coupling power can satisfy the demands of seed source power for fiber laser.

关 键 词：激光器 模式耦合 遗传算法 楔形透镜光纤 耦合效率 

分 类 号：TN248.4[电子电信—物理电子学]