Hybrid fiber interferometer for simultaneous measurement of displacement and temperature

被引：0

作者：

孟飞 ^{[1
]}

秦忠宝 ^{[1
]}

荣强周 ^{[2
]}

孙浩 ^{[2
]}

李佳成 ^{[2
]}

杨在行 ^{[2
]}

忽满利 ^{[2
]}

耿红高 ^{[2
]}

机构：

[1] Xi'an Research Institute of High-Technology

[2] Department of Physics, Northwest University

来源：

Chinese Optics Letters | 2015年 / 13卷 / 05期

关键词：

Hybrid fiber interferometer for simultaneous measurement of displacement and temperature; PMF;

D O I：

暂无

中图分类号：

TN253 [光纤元件];

学科分类号：

0702 ; 070207 ;

摘要：

A hybrid fiber interferometer sensing configuration for displacement and temperature measurements is proposed and experimentally demonstrated that is constructed by splicing a short section of polarization maintaining optical fiber to an end-cleaved single mode optical fiber with a tapering structure. The reflected spectrum changes with the variation of displacement and temperature. The sensing configuration uses the method of wavelength and intensity modulations for displacement and temperature measurements, respectively, to which the sensitivities are 0.01392 nm/μm, 0.0214 d Bm/μm,-0.09136 nm∕°C, and 0.15795 d Bm/°C. Experimental results show that displacement and temperature can be measured simultaneously by demodulating the reflected spectrum.

引用

页码：25 / 29

页数：5