Title :
A novel FBG laser sensor based on beat frequency modulation technology
Author :
Zhang, Liang ; Liu, Shengchun ; Yin, Zuowei ; Gao, Liang ; Chen, Xiangfei
Author_Institution :
The National Laboratory of Microstructure, Nanjing University, 210093, China
Abstract :
Based on the beat frequency demodulation technology, a novel dual-wavelength fiber laser sensor with a strain sensitivity of about (−3.92) MHz/µɛ is proposed and experimentally realized. By employing a LiNbO3 modulator, the high-frequency beating signal can be tuned arbitrarily to tens or hundreds of megahertz without distortion.
Keywords :
Bragg gratings; Capacitive sensors; Demodulation; Fiber gratings; Frequency modulation; Optical distortion; Optical fiber sensors; Optical mixing; Optical modulation; Optical sensors;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
