In-Line Mach-Zehnder Interferometric Sensor Based on a Seven-Core Optical Fiber

被引：61
|
作者：
Wang, Xiaoliang [1 ,2 ]
Chen, Daru [1 ,2 ]
Li, Haitao [1 ,2 ]
Feng, Gaofeng [3 ]
Yang, Junyong [3 ]
机构：
[1] Zhejiang Normal Univ, Inst Informat Opt, Jinhua 321004, Peoples R China
[2] Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou 311200, Zhejiang, Peoples R China
[3] Futong Grp Co Ltd, Fuyang 311400, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2017年 / 17卷 / 01期
基金：
国家高技术研究发展计划(863计划);
关键词：
Optical fiber sensor; Mach-Zehnder interferometer; seven-core fiber; CURVATURE;
D O I：
10.1109/JSEN.2016.2613018
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：
An in-line Mach-Zehnder interferometer (MZI) is proposed and experimentally demonstrated. The sensor is fabricated by splicing a segment of seven-core fiber (SCF) and two segments of very short multi-mode fibers (MMFs). The mode field of the MMF used in our experiments close to the region of hexagonally distributed fiber cores of the SCF, which help to obtain a higher coupling efficiency. A clear interference spectrum of the proposed MZI is obtained by injecting a broadband light into a lead-in single-mode fiber. Such an MZI could be used to realize the measurement of temperature and curvature. The temperature and curvature sensitivities are 55.81 pm/degrees C and 31.54 nm/m(-1), respectively.
引用
收藏
页码：100 / 104
页数：5
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