Design and Optimization of a novel structure for efficient side-coupling of high power double-cladding fiber lasers  

作　　者：ZHANG Fan WANG Chun-can RUI Geng JIAN Shui-sheng 

机构地区：[1]Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

出　　处：《Optoelectronics Letters》2007年第5期349-352,共4页光电子快报（英文版）

摘　　要：A novel structure for efficient side-coupling of high power double-cladding fiber lasers is presented. The maximum cou- pling efficiency of this structure is more than 90% for TM-polarization in the +1 and -1 order but is only 40% for TE- polarization. Thus, a multi-layer stair-structure is introduced and optimized by combining transmission algorithm and genetic algorithm to obtain higher coupling efficiencyηfor TE-polarization and the maximum coupling efficiency almost reaches to 70%.

关 键 词：光学纤维 激光器 偏振结构 传播途径 

分 类 号：TN253[电子电信—物理电子学]