Simultaneous measurement of curvature and temperature based on LP11 mode Bragg grating in seven-core fiber

被引：33

作者：

Zhang, Yunshan ^{[1
]}

Zhang, Weigang ^{[1
]}

Zhang, Yanxin ^{[1
]}

Wang, Song ^{[1
]}

Yu, Lin ^{[1
]}

Yan, Yieyi ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Key Lab Opt Informat Sci & Technol, Minist Educ, Tianjin 300350, Peoples R China

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2017年 / 28卷 / 05期

基金：

中国国家自然科学基金;

关键词：

fiber curvature sensor; temperature; Bragg grating; seven-core fiber; PHOTONIC CRYSTAL FIBER; VECTOR BENDING SENSOR; INTERFEROMETER; CORE;

D O I：

10.1088/1361-6501/aa609f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A robust and compact fiber sensor for simultaneous measurement of curvature and temperature based on LP11 mode Bragg grating is proposed and demonstrated in this paper. The sensor is formed by splicing a short piece of seven-core fiber (SCF) with Bragg grating to single mode fiber (SMF). The Bragg grating is inscribed by UV light exposure, and mainly LP01 resonance peak and LP11 resonance peak are observed in the reflection spectrum. The experimental results show that the wavelength of the LP11 Bragg resonance is insensitive to curvature but the power is very sensitive to curvature. The curvature sensitivity is -7.27 dB/m(-1) with a linearity of 0.997 in the curvature range of 0-1 m(-1). The temperature characteristic shows that the Bragg resonance has almost the same sensitivity as the common fiber Bragg grating (FBG). The sensor is also available to be independent of the ambient refractive index(RI).

引用

收藏

页数：5

相关论文

共 22 条

[1] Temperature-Insensitive Bend Sensor Using Entirely Centered Erbium Doping in the Fiber Core [J].

Ahmad, Harith ;

Zulkifli, Mohd Zamani ;

Muhammad, Farah Diana ;

Samangun, Julian Md ;

Abdul-Rashid, Hairul Azhar ;

Harun, Sulaiman Wadi .

SENSORS, 2013, 13 (07) :9536-9546

[2] Multipoint Two-Dimensional Curvature Optical Fiber Sensor Based on a Nontwisted Homogeneous Four-Core Fiber [J].

Barrera, David ;

Gasulla, Ivana ;

Sales, Salvador .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2015, 33 (12) :2445-2450

[3] All-Fiber Curvature Sensor Based on an Abrupt Tapered Fiber and a Fabry-Perot Interferometer [J].

Cano-Contreras, Martin ;

Guzman-Chavez, Ana D. ;

Mata-Chavez, Ruth I. ;

Vargas-Rodriguez, Everardo ;

Jauregui-Vazquez, Daniel ;

Claudio-Gonzalez, David ;

Estudillo-Ayala, Julian M. ;

Rojas-Laguna, Roberto ;

Huerta-Mascotte, Eduardo .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2014, 26 (22) :2213-2216

[4] Highly Sensitive Bend Sensor Based on Bragg Grating in Eccentric Core Polymer Fiber [J].

Chen, Xianfeng ;

Zhang, Chi ;

Webb, David J. ;

Kalli, Kyriacos ;

Peng, Gang-Ding .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2010, 22 (11) :850-852

[5] Compact bending sensor based on a fiber Bragg grating in an abrupt biconical taper [J].

Cui, Wei ;

Si, Jinhai ;

Chen, Tao ;

Hou, Xun .

OPTICS EXPRESS, 2015, 23 (09) :11031-11036

[6] Temperature-Independent Fiber Bending Sensor Based on a Superimposed Grating [J].

Dong, Xinyong ;

Liu, Yang ;

Shao, Li-Yang ;

Kang, Juan ;

Zhao, Chun-Liu .

IEEE SENSORS JOURNAL, 2011, 11 (11) :3019-3022

[7] Off-axis ultraviolet-written fiber Bragg gratings for directional bending measurements [J].

Feng, Dingyi ;

Qiao, Xueguang ;

Albert, Jacques .

OPTICS LETTERS, 2016, 41 (06) :1201-1204

[8] Curvature sensor using a highly birefringent photonic crystal fiber with two asymmetric hole regions in a Sagnac interferometer [J].

Frazao, Orlando ;

Baptista, Jose M. ;

Santos, Jose L. ;

Roy, Philippe .

APPLIED OPTICS, 2008, 47 (13) :2520-2523

[9] Fiber structure based on a depressed inner cladding fiber for bend, refractive index and temperature sensing [J].

Ivanov, Oleg V. ;

Zlodeev, Ivan V. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2014, 25 (01)

[10] Two-Axis Bending Sensor Based on Cascaded Eccentric Core Fiber Bragg Gratings [J].

Kong, Jing ;

Zhou, Ai ;

Cheng, Cheng ;

Yang, Jun ;

Yuan, Libo .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2016, 28 (11) :1237-1240