Simultaneous Measurement of Temperature and Curvature Based on Hollow Annular Core Fiber

被引：29

作者：

Zhang, Yaxun ^{[1
]}

Zhou, Ai ^{[1
]}

Qin, Boyang ^{[1
]}

Xu, Quan ^{[1
]}

Liu, Zhihai ^{[1
]}

Yang, Jun ^{[1
]}

Yuan, Libo ^{[1
]}

机构：

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

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2014年 / 26卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Optical fiber sensors; interferometer; curvature; temperature; MACH-ZEHNDER INTERFEROMETER; TILTED FIBER; FABRY-PEROT; SENSOR; GRATINGS;

D O I：

10.1109/LPT.2014.2316532

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：

We propose a simultaneous temperature and curvature sensor based on a hollow annular core fiber (HACF) Mach-Zehnder interferometer (MZI). The MZI is fabricated by inserting a short section of HACF between two short pieces of multimode fibers, and interference occurs between the light beams transmitting along the air hole and annular core of the HACF. Curvature and temperature can be measured through fringe visibility variation and wavelength shift of the interference spectrum, respectively. The experimental results show that the temperature sensitivity is 30 pm/degrees C in the range of 30 degrees C-100 degrees C, and the maximum visibility variation is 32.4 dB from 0.555 to 5.405 m(-1). In addition, the device is insensitive to external refractive index.

引用

页码：1128 / 1131

页数：4

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