基于一维非线性光子晶体的光学二极管优化设计  

Optimal design of optical diodes based on one-dimensional nonlinear photonic crystals

作　　者：陈宪锋[1] 汪萨克[1] 王光[1] 沈小明[1] 

机构地区：[1]常州大学数理学院,江苏常州213164

出　　处：《量子电子学报》2011年第5期612-616,共5页Chinese Journal of Quantum Electronics

基　　金：江苏省高校自然科学基础研究项目(07KJD140036);江苏工业学院科技计划项目(JS200802)资助课题

摘　　要：基于F-P腔理论研究了不对称非线性缺陷光子晶体的光学二极管效应。要有效提高光学二极管的正反向透射比,同时又要保证正向透射率不太低,应增大入射光频率的预置量,适当提高缺陷两侧结构的不对称性,并使入射光强在相应变化范围内靠近低值。数值模拟结果支持了该理论的分析。Based on the theory of Fabry-Perot cavity, the optical diode effects of an asymmetric photonic crystal with a Kerr nonlinear defect layer are investigated. In order to effectively improve the anisotropic transmission and insure transmittance of forward incident light not too low, some methods may be used such as increasing the frequency shifting o~ incident light, enhancing properly the asymmetry at both sides of the defect layer, and making the incident light intensity near the low-value in the range of corresponding variations. The theoretical analysis is supported by the numerical simulation results.

关 键 词：非线性光学 光学二极管 双稳态 F—P腔 

分 类 号：O437[机械工程—光学工程]