平面光波导结构的FDTD分析  

FDTD Analysis of Planar Optical Waveguide Structures

作　　者：孔繁敏[1] 李康[1] 郭毅峰[1] 刘新[1] 

机构地区：[1]山东大学信息科学与工程学院,济南250100

出　　处：《光子学报》2004年第3期281-283,共3页Acta Photonica Sinica

基　　金：山东大学青年基金(编号:11170 0 513 10 0 2 9)资助项目

摘　　要：将各向异性理想匹配层 (APML)吸收边界条件用于平面光波导结构的时域有限差分法(FDTD)分析中 ,导出了APML媒质中适用于角域和边缘的通用差分方程 ,并对平行介质带定向耦合器进行了数值模拟和验证 ,所得数值解与解析解非常一致An anisotropic perfectly matched layer (APML) absor bing boundary condition is used in the FDTD analysis of planar optical waveguide structures and the generalized APML difference equations are developed to handle the edges and corners of APML regions. The numerical simulations for the parallel-slab directional coupler are validated and presented. It is shown that the numerical results using FDTD method are in good agreement with the analytical solutions. This method can be applied in the computer-aided design and analysis of arbitrary planar optical waveguide structures.

关 键 词：时域有限差分法 各向异性理想匹配层 平面光波导 

分 类 号：TN252[电子电信—物理电子学]