Tunable phase-shifted fiber Bragg grating based on femtosecond laser fabricated in-grating bubble

被引：45

作者：

Liao, Changrui ^{[1
,3
]}

Xu, Lei ^{[2
]}

Wang, Chao ^{[3
]}

Wang, D. N. ^{[3
]}

Wang, Yiping ^{[1
]}

Wang, Qiao ^{[1
]}

Yang, Kaiming ^{[1
]}

Li, Zhengyong ^{[1
]}

Zhong, Xiaoyong ^{[1
]}

Zhou, Jiangtao ^{[1
]}

Liu, Yingjie ^{[1
]}

机构：

[1] Shenzhen Univ, Minist Educ Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China

[2] Shenzhen Inst Informat Technol, Sch Software Engn, Shenzhen 518029, Guangdong, Peoples R China

[3] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 21期

基金：

美国国家科学基金会;

关键词：

PHOTONIC CRYSTAL FIBERS; FABRY-PEROT; OPTICAL-FIBERS; WRITTEN; INTERFEROMETER; FILTER;

D O I：

10.1364/OL.38.004473

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a type of phase-shifted fiber Bragg gratings based on an in- grating bubble fabricated by femtosecond (fs) laser ablation together with a fusion-splicing technique. A microchannel vertically crossing the bubble is drilled by fs laser to allow liquid to flow in or out. By filling different refractive index (RI) liquid into the bubble, the phase-shift peak is found to experience a linear red shift with the increase of RI, while little contribution to the change of phase shift comes from the temperature and axial strain. Therefore, such a PS-FBG could be used to develop a promising tunable optical filter and sensor. (C) 2013 Optical Society of America

引用

页码：4473 / 4476

页数：4

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