Study of the photonic crystal waveguide based on 2D compound lattice structure  

作　　者：吴朝军 李艳萍 王子宇 

机构地区：[1]State Key Laboratory on Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, Peking University

出　　处：《Optoelectronics Letters》2009年第5期321-323,共3页光电子快报（英文版）

基　　金：supported by the National Basic Research Program of China (No. 2006CB604901);the National Natural Science Foundation of China (No. 60807016);the Doctoral Fund of Ministry of Education of China (No. 200800011003)

摘　　要：By employing 2D plane wave expansion (PWE) and finite difference time domain (FDTD) methods,a photonic crystal waveguide (PCW) based on the compound square lattice structure is presented. Band-gap can be observed for TM polarization and compared with the simple lattice structure based on the same material,the band-gap is increased by 62.7%. Byoptimizing the parameters we get the PCW with the propagation only near the wavelength of 1.55 μm and a flat group indexcurve in a wide wavelength range of 40 nm. And the group velocity dispersion compensation can be realized by thestructure optimization. The results provide a reference for the study and application of photonic crystal waveguide based on the compound lattice structure.By employing 2D plane wave expansion （PWE） and finite difference time domain （FDTD） methods, a photonic crystal waveguide （PCW） based on the compound square lattice structure is presented. Band-gap can be observed for TM polarization and compared with the simple lattice structure based on the same material the band-gap is increased by 62.7%. By optimizing the parameters we get the PCW with the propagation only near the wavelength of 1.55 μm and a flat group index curve in a wide wavelength range of 40 nm. And the group velocity dispersion compensation can be realized by the structure optimization. The results provide a reference for the study and application ofphotonic crystal waveguide based on the compound lattice structure.

关 键 词：二维光子晶体 光子晶体波导 晶格结构 基础 复合 时域有限差分法 平面波展开 波长范围 

分 类 号：TN252[电子电信—物理电子学]