Hybrid LPFG/MEFPI sensor for simultaneous measurement of high-temperature and strain

被引：82
|
作者：
Rao, Yun-Jiang [1 ]
Ran, Zeng-Ling
Liao, Xian
Deng, Hong-You
机构：
[1] Univ Elect Sci & Technol China, Educ Minist China, Key Lab Broadband Opt Fiber Transmiss & Commun Ne, Chengdu 610054, Sichuan, Peoples R China
[2] Chongqing Univ, Educ Minist China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源：
OPTICS EXPRESS | 2007年 / 15卷 / 22期
关键词：
D O I：
10.1364/OE.15.014936
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A hybrid fiber-optic sensor consisting of a long-period fiber grating (LPFG) and a micro extrinsic Fabry-Perot (F-P) interferometric (MEFPI) sensor is proposed and demonstrated for simultaneous measurement of high-temperature and strain. The LPFG written by using high-frequency CO2 laser pulses is used for high-temperature measurement while the MEFPI sensor fabricated by using 157nm F-2 laser pulses is used for strain measurement under high temperature. The distinguishing feature of such a hybrid fiber-optic sensor is that it can stand for high temperature of up to 650 degrees C and achieve precise measurement of strain under high temperature conditions simultaneously. (C) 2007 Optical Society of America.
引用
收藏
页码：14936 / 14941
页数：6
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