All-fiber narrow-bandwidth rectangular Optical filter with reconfigurable bandwidth and tunable center wavelength

被引：8

作者：

Liang, Hong ^{[1
,2
]}

Ying, Kang ^{[1
]}

Wang, Di ^{[3
]}

Pi, Haoyang ^{[1
]}

Li, Xuan ^{[1
]}

Wang, Zhaoyong ^{[1
]}

Wei, Fang ^{[1
]}

Cai, Haiwen ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Space Laser Commun & Detect Technol, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] CAST Xian, Natl Key Lab Sci & Technol Space Microwave, Xian 710100, Shaanxi, Peoples R China

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 08期

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

MICROWAVE PHOTONIC FILTER; BRAGG-GRATING FILTERS; TRANSMISSION; ULTRANARROW; SHARP;

D O I：

10.1364/OE.423451

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this manuscript, a novel narrow-bandwidth rectangular optical filter based on multi-phase-shifted fiber Bragg grating (MPSFBG) is proposed. Using the local temperature control technology, the precise controllable phase shifts are introduced at different positions of the fiber Bragg grating (FBG). Therefore, the bandwidth of the MPSFBG-based filter with good shape factor can be reconfigured from 70 MHz to 1050 MHz by flexibly controlling the numbers and the positions of the phase shifts introduced in the MPSFBG. In addition, the center wavelength of the MPSFBG-based filter can be tuned through controlling the MPSFBG's environment temperature, and the tuning range of 22 GHz is realized. This is one of the best results for the narrow-bandwidth rectangular optical tunable filter with reconfigurable bandwidth. It can be widely used in the processing of reconfigurable signals in the optical communication networks and microwave photonics. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：11739 / 11749

页数：11

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