A wide tuning range electro-optic filter based on long-period waveguide grating  

作　　者：GUO XiaoWei ZHANG XiaoXia LI HePing LIU Yong LIU YongZhi 

机构地区：[1]School of Optoelectronic Information, University of Electronic Science and Technology, Chengdu 610054, China

出　　处：《Chinese Science Bulletin》2010年第13期1338-1342,共5页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 60736038);the National High Technology Research and Development Program for Advanced Materials of China (Grant Nos.2007AA01Z269 and 2009AA03Z413)

摘　　要：We present the design of an electro-optic filter with polarization insensitivity based on a long period waveguide grating. The filter exhibits an ultra-large wavelength tuning range of exceeding 35 nm and covering the whole C band (1530 to 1565 nm) in a bias voltage range from ?84 to 84 V. In the whole tuning range, the transmission coefficients for quasi TE modes are over 97% and the 3 dB bandwidths are below 0.8 nm. The wavelength sensitivity to the tunable voltage is about 0.208 nm/V. This electro-optic filter can be used in dynamic WDM networks for fast wavelength scanning/selection, communication channel reconfiguration, and optical switching.We present the design of an electro-optic filter with polarization insensitivity based on a long period waveguide grating. The filter exhibits an ultra-large wavelength tuning range of exceeding 35 nm and covering the whole C band （1530 to 1565 nm） in a bias voltage range from -84 to 84 V. In the whole tuning range, the transmission coefficients for quasi TE modes are over 97% and the 3 dB bandwidths are below 0.8 nm. The wavelength sensitivity to the tunable voltage is about 0.208 nm/V. This electro-optic filter can be used in dynamic WDM networks for fast wavelength scanning/selection, communication channel reconfiguration, and optical switching.

关 键 词：调谐范围 波导光栅 光滤波器 长周期 基础 波长可调 滤波器设计 偏振不敏感 

分 类 号：TN713[电子电信—电路与系统]