Highly Sensitive Directional Bending Sensor Based on Eccentric Core Fiber Mach-Zehnder Modal Interferometer

被引：39
作者：
Kong, Jing [1 ,2 ]
Ouyang, Xiaowei [3 ,4 ]
Zhou, Ai [3 ,4 ]
Yuan, Libo [1 ]
机构：
[1] Harbin Engn Univ, Key Lab In Fiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China
[2] Heilongjiang Inst Technol, Harbin 150050, Peoples R China
[3] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430074, Peoples R China
[4] Wuhan Univ Technol, Key Lab Fiber Opt Sensing Technol & Informat Proc, Minist Educ China, Wuhan 430074, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2016年 / 16卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Bending sensor; eccentric core fiber; lateral core-offset; Mach-Zehnder modal interferometer; LONG-PERIOD GRATINGS; BRAGG GRATINGS;
D O I：
10.1109/JSEN.2016.2589262
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 high sensitive bending sensor based on eccentric core fiber ( ECF) Mach-Zehnder modal interferometer ( MZI) with direction recognition ability is proposed and demonstrated. The MZI-based bending sensor is fabricated by fusion splicing a piece of ECF in between two standard single mode fibers with a small lateral core-offset. Due to the eccentric location of the core of the ECF, a bend applied on the ECF-based MZI can cause an elongation or shortening of the eccentric core, which makes the ECF-based MZI suitable for directional bending measurement. The bending characteristics are investigated experimentally within the curvature range of 0-1.11 m(-1). The bending sensitivities of the sensor are 13.49 nm/m(-1) at the bending direction of 0 degrees and -18.4 nm/m(-1) at the direction of 180 degrees corresponding to the interference dip at the wavelength of 1553.22 nm.
引用
收藏
页码：6899 / 6902
页数：4
相关论文
共 15 条
[1]   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
[2]   Two-axis bend measurement with Bragg gratings in multicore optical fiber [J].
Flockhart, GMH ;
MacPherson, WN ;
Barton, JS ;
Jones, JDC ;
Zhang, L ;
Bennion, I .
OPTICS LETTERS, 2003, 28 (06) :387-389
[3]   Bending sensitivity of long-period fiber gratings inscribed in holey fibers depending on an axial rotation angle [J].
Han, Young-Geun ;
Kim, Gilhwan ;
Lee, Kwanil ;
Lee, Sang Bae ;
Jeong, Chang Hyun ;
Oh, Chi Hwan ;
Kang, Hee Jeon .
OPTICS EXPRESS, 2007, 15 (20) :12866-12871
[4]   Effect of macro-bending on resonant wavelength and intensity of long-period gratings in photonic crystal fiber [J].
He, Zonghu ;
Zhu, Yinian ;
Du, Henry .
OPTICS EXPRESS, 2007, 15 (04) :1804-1810
[5]   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
[6]   EFFECT OF BENDING AND ORIENTATION ON THE FIBER MODAL MACH-ZEHNDER INTERFEROMETER [J].
Liu, Yan ;
Liu, Bo ;
Miao, Yinping ;
Zhang, Hao ;
Liu, Jian .
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2012, 54 (01) :136-139
[7]   Long period fibre gratings for structural bend sensing [J].
Patrick, HJ ;
Chang, CC ;
Vohra, ST .
ELECTRONICS LETTERS, 1998, 34 (18) :1773-1775
[8]   A novel long period fiber grating sensor measuring curvature and determining bend-direction simultaneously [J].
Wang, YP ;
Rao, YJ .
IEEE SENSORS JOURNAL, 2005, 5 (05) :839-843
[9]   Multiple parameter vector bending and high-temperature sensors based on asymmetric multimode fiber Bragg gratings inscribed by an infrared femtosecond laser [J].
Yong, Zhu ;
Zhan, Chun ;
Lee, Jon ;
Yin, Shizhuo ;
Ruffin, Paul .
OPTICS LETTERS, 2006, 31 (12) :1794-1796
[10]   TWO-DIMENSIONAL BENDING VECTOR SENSOR BASED ON MACH-ZEHNDER INTERFEROMETER OF TWO ORTHOGONAL LATERAL-OFFSETS [J].
Zhang, Jianhao ;
Zhang, Weigang ;
Wang, Jiuzhen ;
Huang, Shang ;
Liu, Min ;
Li, Jieliang ;
Wang, Li .
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2015, 57 (03) :709-713
12