Broadband filter using multi-layer sub-wavelength high-contrast grating structure  

作　　者：Chuan WANG Xi ZHANG Xiaoying LIU Yang YUE Yong MEI Peng LI Jia DU 

机构地区：[1]School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China [2]Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA

出　　处：《Frontiers of Optoelectronics》2014年第3期393-398,共6页光电子前沿（英文版）

摘　　要：This paper proposed a novel broadband filter using multi-layer sub-wavelength high-contrast grating （HCG） structure. This filter has wide bandwidth and good sideband suppression. We simulated and analyzed the effects of different numbers of layers and different grating indexes on filtering performance of the broadband filter. According to the simulated results, we designed a multi- layer HCG broadband filter, which has bandwidth of 843 nm and center wavelength of 1550 nm.This paper proposed a novel broadband filter using multi-layer sub-wavelength high-contrast grating （HCG） structure. This filter has wide bandwidth and good sideband suppression. We simulated and analyzed the effects of different numbers of layers and different grating indexes on filtering performance of the broadband filter. According to the simulated results, we designed a multi- layer HCG broadband filter, which has bandwidth of 843 nm and center wavelength of 1550 nm.

关 键 词：filter SUB-WAVELENGTH high-contrast grating （HCO） 

分 类 号：TN818[电子电信—信息与通信工程] TN713