An In-Fiber Dual Air-Cavity Fabry-Perot Interferometer for Simultaneous Measurement of Strain and Directional Bend

被引：37

作者：

Ouyang, Yang ^{[1
,2
]}

Guo, Huiyong ^{[1
]}

Ouyang, Xiaowei ^{[1
,2
]}

Zhao, Yujia ^{[3
]}

Zheng, Zhou ^{[1
]}

Zhou, Ciming ^{[1
,2
]}

Zhou, Ai ^{[1
,2
]}

机构：

[1] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430074, Peoples R China

[2] Wuhan Univ Technol, Minist Educ, Key Lab Fiber Opt Sensing Technol & Informat Proc, Wuhan 430074, Peoples R China

[3] Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2017年 / 17卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Seven-core fiber; dual side-hole; Fabry-Perot interferometer; strain; bend; TEMPERATURE; SENSOR;

D O I：

10.1109/JSEN.2017.2693501

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simultaneous strain and directional bend sensor based on an in-fiber dual air-cavity Fabry-Perot interferometer (FPI) is presented and demonstrated. The hybrid structure is composed of a fraction of dual side-hole fiber fusion spliced in between a seven-core fiber and a multimode fiber. The bending sensitivities of the two air-cavity FPIs at two opposite most sensitive directions are 120.5 pm/m(-1) and -122 pm/m(-1), 110.4 pm/m(-1), and -121.1 pm/m(-1), respectively. The strain sensitivities of the two FPIs are 1.59 pm/mu epsilon and 1.52 pm/mu epsilon, respectively. By using the method of difference between the two mutually independent air-cavity FPIs, the highest bending sensitivities can be improved to be 242.5 pm/m(-1) and -231.5 pm/m(-1), respectively, and the axial strain effect can be eliminated simultaneously.

引用

页码：3362 / 3366

页数：5

共 14 条

[1] Miniature fiber-optic high temperature sensor based on a hybrid structured Fabry-Perot interferometer [J].

Choi, Hae Young ;

Park, Kwan Seoh ;

Park, Seong Jun ;

Paek, Un-Chul ;

Lee, Byeong Ha ;

Choi, Eun Seo .

OPTICS LETTERS, 2008, 33 (21) :2455-2457

[2] Optical fiber temperature sensor based on a microcavity with polymer overlay [J].

Hernandez-Romano, Ivan ;

Cruz-Garcia, Miguel A. ;

Moreno-Hernandez, Carlos ;

Monzon-Hernandez, David ;

Lopez-Figueroa, Efrain O. ;

Paredes-Gallardo, Omar E. ;

Torres-Cisneros, Miguel ;

Villatoro, Joel .

OPTICS EXPRESS, 2016, 24 (05) :5654-5661

[3] Intrinsic Fabry-Perot fiber sensor for temperature and strain measurements [J].

Huang, ZY ;

Zhu, YZ ;

Chen, XP ;

Wang, AB .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (11) :2403-2405

[4]

Kong J., 2016, J OPT, V19

[5] Dual hollow core fiber-based Fabry-Perot interferometer for measuring the thermo-optic coefficients of liquids [J].

Lee, Cheng-Ling ;

Ho, Hsuan-Yu ;

Gu, Jheng-Hong ;

Yeh, Tung-Yuan ;

Tseng, Chung-Hao .

OPTICS LETTERS, 2015, 40 (04) :459-462

[6] Optical fiber vector flow sensor based on a silicon Fabry-Perot interferometer array [J].

Liu, Guigen ;

Sheng, Qiwen ;

Hou, Weilin ;

Han, Ming .

OPTICS LETTERS, 2016, 41 (20) :4629-4632

[7] Fiber-optic gas pressure sensing with a laser-heated silicon-based Fabry-Perot interferometer [J].

Liu, Guigen ;

Han, Ming .

OPTICS LETTERS, 2015, 40 (11) :2461-2464

[8] Ultra-high sensitivity Fabry-Perot interferometer gas refractive index fiber sensor based on photonic crystal fiber and Vernier effect [J].

Quan, Mingran ;

Tian, Jiajun ;

Yao, Yong .

OPTICS LETTERS, 2015, 40 (21) :4891-4894

[9]

Tian J., 2007, OPT EXP, V21, P6633

[10] Temperature-insensitive miniaturized fiber inline Fabry-Perot interferometer for highly sensitive refractive index measurement [J].

Wei, Tao ;

Han, Yukun ;

Li, Yanjun ;

Tsai, Hai-Lung ;

Xiao, Hai .

OPTICS EXPRESS, 2008, 16 (08) :5764-5769

← 1 2 →