Modal Interferometer Using Three-Core Fiber for Simultaneous Measurement Strain and Temperature

被引：26

作者：

Geng, Tao ^{[1
]}

He, Jiang ^{[1
]}

Yang, WenLei ^{[1
]}

Chen, XuDong ^{[1
]}

An, MaoWei ^{[1
]}

Sun, CuiTing ^{[1
]}

Jin, XiRen ^{[1
]}

Yuan, Libo ^{[1
]}

机构：

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

来源：

IEEE PHOTONICS JOURNAL | 2016年 / 8卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Tapered three-core fiber; long-period fiber grating; simultaneous measurement; strain sensor; temperature sensor; SENSOR; DIAMETER;

D O I：

10.1109/JPHOT.2016.2585339

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 structure made of tapered three-core fiber and CO2 laser notch long-period fiber grating is proposed in this paper. By adjusting the taper waist diameter of a three-core fiber, this structure is made suitable for simultaneous strain and temperature measurements. The effectiveness of the proposed structure in realizing simultaneous measurement sensitivity is verified by measuring the sensitivities of the two peaks at the variation of the wavelength and the depth difference. Experimental results indicate that the wavelength sensitivities of the two peaks are -2.96 nm m epsilon(-1), 42.9 pm degrees C-1 and -1.52 nm m epsilon(-1), 47.4 pm degrees C-1 for strain and temperature, respectively, and the depth sensitivities of two peaks can reach 2.5 dB m epsilon(-1), 0.007 dB degrees C-1 and -2.8 dB m epsilon(-1), -0.013 dB degrees C-1. It can therefore be concluded that the proposed structure can be realized by adjusting the taper waist diameter of a three-core fiber for simultaneous strain and temperature measurements.

引用

页数：8

共 22 条

[1] Optical fiber magnetic field sensor based on single-mode-multimode-single-mode structure and magnetic fluid [J].

Chen, Yaofei ;

Han, Qun ;

Liu, Tiegen ;

Lan, Xinwei ;

Xiao, Hai .

OPTICS LETTERS, 2013, 38 (20) :3999-4001

[2] Simultaneous measurement of strain and temperature based on a long-period grating with a polarization maintaining fiber in a loop mirror [J].

Chu, Jinlei ;

Shen, Changyu ;

Qian, Feng ;

Zhong, Chuan ;

Zou, Xin ;

Dong, Xinyong ;

Jin, Yongxing ;

Wang, Jianfeng ;

Gong, Yan ;

Jiang, Tingting .

OPTICAL FIBER TECHNOLOGY, 2014, 20 (01) :44-47

[3] Optical inclinometer based on a single long-period fiber grating combined with a fused taper [J].

Frazao, O. ;

Falate, R. ;

Fabris, J. L. ;

Santos, J. L. ;

Ferreira, L. A. ;

Araujo, F. M. .

OPTICS LETTERS, 2006, 31 (20) :2960-2962

[4] Fiber optic sensor technology: an overview [J].

Grattan, KTV ;

Sun, T .

SENSORS AND ACTUATORS A-PHYSICAL, 2000, 82 (1-3) :40-61

[5] Review of the present status of optical fiber sensors [J].

Lee, B .

OPTICAL FIBER TECHNOLOGY, 2003, 9 (02) :57-79

[6] Effect of waist diameter and twist on tapered asymmetrical dual-core fiber MZI filter [J].

Liu, Yan ;

Li, Yang ;

Yan, Xiaojun ;

Li, Weidong .

APPLIED OPTICS, 2015, 54 (28) :8248-8253

[7] Multi-parameter optical fiber sensor based on enhanced multimode interference [J].

Luo, Yiyang ;

Xia, Li ;

Yu, Can ;

Li, Wei ;

Sun, Qizhen ;

Wang, Yuanwu ;

Liu, Deming .

OPTICS COMMUNICATIONS, 2015, 344 :120-124

[8] Simultaneous measurement of temperature and magnetic field based on a long period grating concatenated with multimode fiber [J].

Miao, Yinping ;

Zhang, Hao ;

Lin, Jichao ;

Song, Binbin ;

Zhang, Kailiang ;

Lin, Wei ;

Liu, Bo ;

Yao, Jianquan .

APPLIED PHYSICS LETTERS, 2015, 106 (13)

[9] Wavelength shift of cladding mode resonances in a mechanically induced LPFG by twisting the fiber [J].

Nair, B. Unnikrishnan ;

Kumar, V. P. Sudeep ;

Pillai, V. P. Mahadevan ;

Nayar, V. U. .

FIBER AND INTEGRATED OPTICS, 2007, 26 (03) :159-172

[10] High temperature fiber sensor with high sensitivity based on core diameter mismatch [J].

Nguyen, Linh Viet ;

Hwang, Dusun ;

Moon, Sucbei ;

Moon, Dae Seung ;

Chung, Youngjoo .

OPTICS EXPRESS, 2008, 16 (15) :11369-11375

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