Rigorous supermode solutions in a strong absorption slab waveguide and application to design of a waveguide photodetector  

作　　者：余学才 古燕西 陈代尧 张晓刚 刘永 

机构地区：[1]School of Optic and Electronic Message,Electronic Science and Technology of China

出　　处：《Chinese Optics Letters》2013年第6期34-38,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos. 61177036and 60925019

摘　　要：A rigorous supermode solution method in a strong absorption slab multilayer waveguide is performed. The method is directed toward finding solutions for a sophisticated complex determinant in a complex plane. The rigorous results are applied to design a waveguide photodetector that has a configuration of a vertical directional coupler. Absorption lengths of the supermodes and coupling length of the coupler are calculated based on an effective index approach by using the rigorous results of the strong absorption slab multilayer waveguide to optimize the directional coupling waveguide photodetector.A rigorous supermode solution method in a strong absorption slab multilayer waveguide is performed. The method is directed toward finding solutions for a sophisticated complex determinant in a complex plane. The rigorous results are applied to design a waveguide photodetector that has a configuration of a vertical directional coupler. Absorption lengths of the supermodes and coupling length of the coupler are calculated based on an effective index approach by using the rigorous results of the strong absorption slab multilayer waveguide to optimize the directional coupling waveguide photodetector.

关 键 词：MULTILAYERS PHOTONS WAVEGUIDES 

分 类 号：TN814[电子电信—信息与通信工程]