长周期波导光栅窄带光滤波器特性的模拟  

Property Simulation of a Narrow Band-passed Optical Filter Based on Long-period Waveguide Grating

作　　者：张谦述[1,2] 廖进昆[1] 陆荣国[1] 唐雄贵[1] 李和平[1] 刘永[1] 刘永智[1] 

机构地区：[1]宽带光纤传输与通信教育部重点实验室电子科技大学光电信息学院,四川成都610054 [2]西华师范大学物理与电子学院,四川南充637002

出　　处：《发光学报》2009年第3期356-362,共7页Chinese Journal of Luminescence

基　　金：国家自然科学基金重点(60736038);国家“863”计划(2007AA01Z269);NCET项目(NCET-06-0805)资助项目

摘　　要：利用两路平行的刻有长周期光栅(LPWG)波导间耦合的理论模型,研究了LPWG波导光滤波器,利用弱耦合实现高耦合效率和窄带滤波的方法,设计了一个窄带光滤波器。仿真结果表明,在1530～1560nm范围,能实现单一的带通、带阻互补滤波输出,3dB带宽为1nm,耦合效率高达98%。Using the model describing the coupling operation of two paralle waveguides with long-period waveguide grating （LPWG） thereon, the methods decreasing coupling coefficient of coupled modes to realize narrow band-passed optical filtering and high coupling efficiency were investigated in this paper. Meantime, a narrow band-passed optical filter was designed with these methods. The simulation results indicated that the filter could be realized with a single band-passed result and band-rejected result simultaneously in the wavelength range of 1530 nm to 1560 nm. The 3dB band-width is only 1 nm.

关 键 词：集成光学 光电子器件 光滤波器 长周期波导光栅 耦合模理论 仿真 

分 类 号：TN256[电子电信—物理电子学]