All-fiber optical filter with an ultranarrow and rectangular spectral response

被引：49
|
作者：
Zou, Xihua [1 ,2 ,3 ,4 ]
Li, Ming [2 ,5 ]
Pan, Wei [1 ]
Yan, Lianshan [1 ]
Azana, Jose [2 ]
Yao, Jianping [4 ]
机构：
[1] Southwest Jiaotong Univ, Ctr Informat Photon & Commun, Chengdu 610031, Peoples R China
[2] INRS EMT, Quebec City, PQ, Canada
[3] Sci & Technol Elect Informat Control Lab, Chengdu 610036, Peoples R China
[4] Univ Ottawa, Microwave Photon Res Lab, Ottawa, ON K1N 6N5, Canada
[5] Chinese Acad Sci, State Key Lab Integrated Optoelect, Inst Semicond, Beijing, Peoples R China
来源：
OPTICS LETTERS | 2013年 / 38卷 / 16期
基金：
中国国家自然科学基金; 加拿大自然科学与工程研究理事会;
关键词：
BRAGG-GRATING FILTERS; RING LASER;
D O I：
10.1364/OL.38.003096
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Optical filters with an ultranarrow and rectangular spectral response are highly desired for high-resolution optical/electrical signal processing. An all-fiber optical filter based on a fiber Bragg grating with a large number of phase shifts is designed and fabricated. The measured spectral response shows a 3 dB bandwidth of 650 MHz and a rectangular shape factor of 0.513 at the 25 dB bandwidth. This is the narrowest rectangular bandpass response ever reported for an all-fiber filter, to the best of our knowledge. The filter has also the intrinsic advantages of an all- fiber implementation. (C) 2013 Optical Society of America
引用
收藏
页码：3096 / 3098
页数：3
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