Method to reduce sidelobes of multistage Lyot filters

被引：8
|
作者：
Yang, Guowei [1 ]
Zheng, Zhenrong [1 ]
Li, Haifeng [1 ]
Liu, Xu [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
来源：
APPLIED OPTICS | 2010年 / 49卷 / 08期
关键词：
LIQUID-CRYSTAL FILTER; DESIGN;
D O I：
10.1364/AO.49.001280
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a method to reduce sidelobes of multistage Lyot filters by substituting certain stages with two-plate fan Solc stages. Parallel-aligned nematic liquid crystal (LC) cells are used as variable retarders to compose multistage Lyot LC tunable filters (LCTF). The simulation of a four-stage Lyot LCTF and a tunable filter, comprising two stages of Lyot filter and two stages of two-plate Solc filter, are compared. With this method, the sidelobes are reduced and the full width at half-maximum intensity of transmission peak is also reduced. Experimental results and theoretical analysis are presented in detail to verify this method. (C) 2010 Optical Society of America
引用
收藏
页码：1280 / 1287
页数：8
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