5 March 2007 The distributed Brillouin sensor system based on offset locking two DFB lasers
Author Affiliations +
Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65952T (2007) https://doi.org/10.1117/12.725907
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China
Abstract
In this paper, we demonstrated a distributed Brillouin sensor based on the offset locking of two 1550nm DFB lasers. We use PID controller and optical delay line to lock and tune the frequency difference between two DFB lasers and we also use lock in amplifier to stabilize the DC level of the EOM. The power depletion in the Brillouin scattering has been studied to show optimized strain and temperature accuracy. With this sensor system, we can get the spatial resolution which is 1m with temperature resolution of < 1°C.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yun Li, Yun Li, Xiaoyi Bao, Xiaoyi Bao, Lufan Zou, Lufan Zou, Fabien Ravet, Fabien Ravet, } "The distributed Brillouin sensor system based on offset locking two DFB lasers", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952T (5 March 2007); doi: 10.1117/12.725907; https://doi.org/10.1117/12.725907
PROCEEDINGS
8 PAGES


SHARE
Back to Top