A Novel Temperature-Compensated, Intensity-Modulated Fiber Bragg Grating Sensor System

被引：0
|
作者：
Hwa-Yaw Tam [1 ]
机构：
[1] Photonics Research Centre and Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong
来源：
Journal of Electronic Science and Technology | 2008年 / 6卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensing; fiber Bragg gratings; intensity-modulated; strain;
D O I：
暂无
中图分类号：
TP212.14 [];
学科分类号：
0803 ;
摘要：
An intensity-modulated, fiber Bragg grating (FBG) sensor system based on radio-frequency (RF) signal measurement is presented. The RF signal is generated at a photodetector by two modulated optical signals reflected from the sensing FBG and a reference one. Bragg wavelength shift of the sensing FBG changes intensity of the RF signal by changing phase difference between the two optical signals, with temperature effect being compensated automatically by the reference FBG. Strain measurement with a maximum sensitivity of-0.34 μV/με has been achieved.
引用
收藏
页码：434 / 437
页数：4
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