All-fiber flat-top comb filter based on a Mach-Zehnder interferometer cascading a Michelson interferometer

被引：3
|
作者：
Wang, Hongchu [1 ]
Wu, Xiaowei [2 ]
Meng, Hongyun [2 ]
机构：
[1] S China Normal Univ, Sch Math Sci, Guangzhou 510006, Guangdong, Peoples R China
[2] S China Normal Univ, Lab Nanophoton Funct Mat & Devices, Guangzhou 510006, Guangdong, Peoples R China
来源：
OPTIK | 2015年 / 126卷 / 19期
关键词：
Flat-top filter; Mach-Zehnder interferometer; Michelson interferometer; INTERLEAVER;
D O I：
10.1016/j.ijleo.2015.04.058
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An all-fiber comb filter with flat-top spectral response based on a Mach-Zehnder interferometer (MZI) cascading a Michelson interferometer (MI) is proposed. The proposed filter consists of a rotatable polarizer, two 3-dB couplers, and two fiber Faraday rotator mirrors (FRMs). The numerical simulation results show that the birefringence of the single mode fiber (SMF) can be neglected when the polarization state of linearly polarized incident light respect to one principle axe of fiber. By selecting the path difference of the MZI and MI and adjusting the rotation angle of the two FRMs, the flat-top comb spectral response can be obtained. (C) 2015 Elsevier GmbH. All rights reserved.
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页码：1806 / 1808
页数：3
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