基于自成像多模干涉的光子晶体波导1×2分束器  

Self-Imaging-based multimode interference photonic crystal waveguide 1×2 splitter

作　　者：徐旭明[1] 李未[1] 方利广[1] 乐庸炉[1] 杨春云[1] 钱小霞[1] 

机构地区：[1]南昌大学理学院,江西南昌330031

出　　处：《光通信研究》2008年第6期34-36,共3页Study on Optical Communications

基　　金：江西省自然科学基金项目(0612043;2007GZW2547);江西省教育厅重点项目(赣教技字[2006]15号);江西省科技攻关项目

摘　　要：通过模拟计算研究了二维三角形光子晶体波导自成像多模干涉的耦合特性,提出了一种二维光子晶体1×2分束器。基于自成像多模干涉效应,用有限时域差分法对这种分束器的特性进行了数值计算和分析。研究发现,这种分束器的透射率可高达96%,造成这种现象的物理原因是多模干涉区的自成像效应,这种多模干涉在光子晶体光学集成电路中具有重大的潜在应用价值。The coincidence characteristics of the self-imaging multimode interferences of two-dimensional triangle photonic crystal waveguides are investigated by simulation and computation.A two-dimensional photonic crystal 1×2 splitter is proposed.On the basis of self-imaging interference effects,its characteristics are calculated and analyzed by finite-difference time-domain method.Investigations show that the transmissivity of this splitter can be as high as 96% because of the self-imaging effects in the multimode interference region,which can find major potential applications in photonic crystal optical integrated circuits.

关 键 词：光子晶体波导 自成像效应 多模干涉 

分 类 号：TN814[电子电信—信息与通信工程]