Sensitive Mach-Zehnder interferometric sensor based on a grapefruit microstructured fiber by lateral offset splicing

被引：20

作者：

Wang, Yu ^{[1
,2
]}

Zhou, Yan ^{[1
]}

Liu, Zhengyong ^{[3
,4
]}

Chen, Daru ^{[1
]}

Lu, Chao ^{[2
]}

Tam, Hwa-Yaw ^{[3
]}

机构：

[1] Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou 311231, Peoples R China

[2] Hong Kong Polytech Univ, Photon Res Ctr, Dept Elect & Informat Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China

[3] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hung Hom,Kowloon, Hong Kong, Peoples R China

[4] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 18期

基金：

中国国家自然科学基金;

关键词：

HIGH-RESOLUTION; GRATING SENSOR; BRAGG; INTERFERENCE; TEMPERATURE;

D O I：

10.1364/OE.402584

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel inline Mach-Zehnder interferometric (MZI) sensor based on a homemade grapefruit microstructured fiber (GMF) was proposed and experimentally demonstrated. The sensing unit consists of a short segment of a GMF sandwiched between two single mode fibers using lateral offset splicing. The fabrication of the GMF and the GMF-based MZI sensor was introduced. Mode analysis of the GMF and theoretical simulation of the proposed MZI sensor were investigated and matched well with experimental results. The sensing performance of the MZI sensor for temperature and strain was tested. The strain and temperature sensitivity are 1.97pm/mu epsilon and 37pm/degrees C, respectively. The compact size, low cost and high sensitivity makes the MZI sensor a good candidate for sensing application. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：26564 / 26571

页数：8

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