Finite element analysis of in-phase supermode for multicore photonic crystal fibers  

作　　者：姜源源 魏泳涛 邓国亮 胡滔 冯国英 

机构地区：[1]Department of Optoelectronics, Sichuan University [2]College of Architecture and Environment, Sichuan University

出　　处：《Optoelectronics Letters》2010年第5期328-332,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 10676023, 60890203 and 10976017)

摘　　要：Based on the Helmholtz equations, the full-vector finite element method (FEM) accompanied with the shifted iteration algorithm is used to analyze in-phase supermodes of a 19-core photonic crystal fiber. The effects of fiber structural parameters on the in-phase supermode field are also studied. The results indicate that the form of the fiber structure plays a key role on coupling of fiber cores, and the desired mode shapes which have the same amplitude in each core can be obtained by choosing the appropriate diameter of airhole. The results show a viable option for further achieving high-power laser output.Based on the Helmholtz equations, the full-vector finite element method （FEM） accompanied with the shifted iteration algorithm is used to analyze in-phase supermodes of a 19-core photonic crystal fiber. The effects of fiber structural parameters on the in-phase supermode field are also studied. The results indicate that the form of the fiber structure plays a key role on coupling of fiber cores, and the desired mode shapes which have the same amplitude in each core can be obtained by choosing the appropriate diameter of airhole. The results show a viable option for further achieving high-power laser output.

关 键 词：光子晶体光纤 超模 光子晶体纤维 多核 亥姆霍兹方程 矢量有限元法 迭代算法 结构参数 

分 类 号：TN253[电子电信—物理电子学] TN248.4