High resolution and wide scale fiber Bragg grating sensor interrogation system

被引：13

作者：

Ma, Youchun ^{[1
,2
]}

Wang, Changjiang ^{[2
]}

Yang, Yuanhong ^{[1
]}

Yan, Shubin ^{[2
]}

Li, Jinming ^{[2
]}

机构：

[1] BeiHang Univ, Dept Optoelect, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China

[2] North Univ China, Minist Educ, Key Lab Instrumentat Sci & Dynam Measurement, Taiyuan 030051, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2013年 / 50卷

基金：

中国国家自然科学基金;

关键词：

Fiber Bragg grating; Interrogation; Automatic control; NONLINEARITY;

D O I：

10.1016/j.optlastec.2013.02.018

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper demonstrates a high resolution and wide scale fiber Bragg grating sensor interrogation system based on fiber Fabry-Perot tunable filter (FFP-TF) and Fabry-Perot ITU filter (FPIF). By automatic control of the driving voltage of the FFP-TF, the wavelength of the laser can be tracked to the -3 dB reflectivity spectrum of the FBG. Using FPIF as the reference channel, the measurement resolution of the system is improved by wiping out the nonlinearity of the FFP-TF. A high resolution of better than 2 pm within wide strain measurement range was verified by experiments. Crown Copyright (c) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：107 / 111

页数：5

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