中国电子科技2008，Vol.6Issue(4)：434-437,4.
A Novel Temperature-Compensated, Intensity-Modulated Fiber Bragg Grating Sensor System
A Novel Temperature-Compensated, Intensity-Modulated Fiber Bragg Grating Sensor System
摘要
Abstract
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.关键词
Optical fiber sensing, fiber Bragg gratings, intensity-modulated, strain.Key words
Optical fiber sensing, fiber Bragg gratings, intensity-modulated, strain.分类
信息技术与安全科学引用本文复制引用
Xin-Yong Dong,Hwa-Yaw Tam..A Novel Temperature-Compensated, Intensity-Modulated Fiber Bragg Grating Sensor System[J].中国电子科技,2008,6(4):434-437,4.基金项目
This work was supported by the National Natural Science Foundation of China under Grant No. 60807021. （）
