Simultaneous measurement of temperature and strain using a long-period fiber grating with a micro-taper

被引：0
|
作者：
Tao Geng
Jian Li
Wenlei Yang
Maowei An
Hongyi Zeng
Fan Yang
Zhengji Cui
Libo Yuan
机构：
[1] Harbin Engineering University,Key Lab of In
来源：
Optical Review | 2016年 / 23卷
关键词：
Simultaneous measurement; Temperature; Strain; Mach–Zehnder interferometer; Long-period fiber grating;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An all-fiber Mach–Zehnder interferometer (MZI) consisting of a long-period fiber grating with a micro-taper is proposed for simultaneous measurement of temperature and strain. The experimental results demonstrate that the temperature and strain sensitivities of the proposed MZI are 83 pm/°C and −2.6 pm/με, respectively. The strain sensitivity is 20 times as high as that of a long-period fiber written by CO2 laser pulses combined with a fiber bitaper. In addition, the interferometer requires only a common single-mode fiber, and it is easy to fabricate and is inexpensive for temperature and strain sensing applications.
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页码：657 / 661
页数：4
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