Strain and temperature sensor based on S-taper embedded in long-period grating

被引：4

作者：

Li, Meiqi ^{[1
]}

Cao, Ye ^{[1
]}

Zhang, Hao ^{[2
]}

Wu, Wenwen ^{[1
]}

Liu, Bo ^{[2
]}

Liu, Ting ^{[2
]}

Duan, Shaoxiang ^{[2
]}

Liu, Yange ^{[1
]}

机构：

[1] Qingdao Univ, Sch Elect & Informat, Qingdao, Peoples R China

[2] Nankai Univ, Inst Modern Opt, Tianjin Key Lab Optoelect Sensor & Sensing Networ, Minist Educ,Key Lab Opt Informat Sci & Technol, Tianjin, Peoples R China

来源：

OPTICAL ENGINEERING | 2020年 / 59卷 / 09期

基金：

中国国家自然科学基金;

关键词：

S-taper; long-period grating; Mach-Zehnder interferometer; strain; temperature; M-Z INTERFEROMETER; REFRACTIVE-INDEX; FIBER; FORCE;

D O I：

10.1117/1.OE.59.9.097105

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Mach-Zehnder interferometer based on S-taper embedded in long-period grating (LPG) for simultaneous measurement of strain and temperature is proposed. The LPG is written using CO2 laser in a single-mode fiber. Then an S-taper is made by putting the LPG in a fusion splicer and applying off-axis pull at the middle point. The spectral characteristics of strain and temperature are investigated theoretically and experimentally. The experimental results show that the maximum strain sensitivity is 53.6 pm/mu epsilon within a strain range of 0 to 373.13 mu epsilon. In additionally, the proposed sensor has a maximum temperature sensitivity of 70 pm/degrees C when the temperature varies from 30 degrees C to 90 degrees C. Further analysis shows that this sensor could be applied for simultaneous measurement of strain and temperature. (C) 2020 Society of Photo Optical Instrumentation Engineers (SPIE)

引用

页数：9

共 35 条

[1]

[Anonymous], 2016, IEEE PHOTON J

[2] MZ Interferometer Constructed by Two S-Bend Fibers for Displacement and Force Measurements [J].

Chen, Jinping ;

Zhou, Jun ;

Yuan, Xiaocong .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2014, 26 (08) :837-840

[3] Ultra-Sensitive Strain Sensor Based on Femtosecond Laser Inscribed In-Fiber Reflection Mirrors and Vernier Effect [J].

Deng, Jun ;

Wang, D. N. .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (19) :4935-4939

[4] Cascaded Fiber Up-Taper Modal Interferometer and Its Application as Fiber Sensor [J].

Dong, Shandong ;

Dong, Bo ;

Yu, Changyuan ;

Guo, Yongxin .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (11) :2675-2680

[5] Multi-parameter sensor based on single Long Period Grating in Panda fiber for the simultaneous measurement of SRI, temperature and strain [J].

Esposito, Flavio ;

Srivastava, Anubhav ;

Iadicicco, Agostino ;

Campopiano, Stefania .

OPTICS AND LASER TECHNOLOGY, 2019, 113 :198-203

[6] Modal Interferometer Using Three-Core Fiber for Simultaneous Measurement Strain and Temperature [J].

Geng, Tao ;

He, Jiang ;

Yang, WenLei ;

Chen, XuDong ;

An, MaoWei ;

Sun, CuiTing ;

Jin, XiRen ;

Yuan, Libo .

IEEE PHOTONICS JOURNAL, 2016, 8 (04)

[7] All fiber M-Z interferometer for high temperature sensing based on a hetero-structured cladding solid-core photonic bandgap fiber [J].

Hu, Xiongwei ;

Shen, Xiang ;

Wu, Jianjun ;

Peng, Jinggang ;

Yang, Lvyun ;

Li, Jinyan ;

Li, Haiqin ;

Dai, Nengli .

OPTICS EXPRESS, 2016, 24 (19) :21693-21699

[8] Temperature-insensitive directional bending sensors based on the interlaced tilted long-period gratings [J].

Huang, Lu ;

Meng, Xinyu ;

Zhao, Yunhe ;

Liu, Yunqi .

OPTICS COMMUNICATIONS, 2019, 447 :18-23

[9] Fiber in-line magnetic field sensor based on Mach-Zehnder interferometer integrated with magnetic fluid [J].

Lei Xue-qin ;

Xu Yan-chao ;

Yu Ya-ting ;

Peng Bao-jin .

OPTOELECTRONICS LETTERS, 2019, 15 (01) :43-47

[10] Simultaneous measurement of temperature and force with high sensitivities based on filling different index liquids into photonic crystal fiber [J].

Liang, Hu ;

Zhang, Weigang ;

Geng, Pengcheng ;

Liu, Yange ;

Wang, Zhi ;

Guo, Junqi ;

Gao, Shecheng ;

Yan, Suyuan .

OPTICS LETTERS, 2013, 38 (07) :1071-1073

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