Translator Disclaimer
Paper
10 August 2015 Development of a distributed polarization-OTDR to measure two vibrations with the same frequency
Author Affiliations +
Proceedings Volume 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 962002 (2015) https://doi.org/10.1117/12.2193409
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China
Abstract
A polarization optical time-domain reflectometer (POTDR) can distributedly measure the vibration of fiber by detecting the vibration induced polarization variation only with a polarization analyzer. It has great potential in the monitoring of the border intrusion, structural healthy, anti-stealing of pipeline and so on, because of its simple configuration, fast response speed and distributed measuring ability. However, it is difficult to distinguish two vibrations with the same frequency for POTDR because the signal induced by the first vibration would bury the other vibration induced signal. This paper proposes a simple method to resolve this problem in POTDR by analyzing the phase of the vibration induced signal. The effectiveness of this method in distinguishing two vibrations with the same frequency for POTDR is proved by simulation.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yun Pan, Feng Wang, Xiangchuan Wang, Mingjiang Zhang, Ling Zhou, Zhenqing Sun, and Xuping Zhang "Development of a distributed polarization-OTDR to measure two vibrations with the same frequency", Proc. SPIE 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 962002 (10 August 2015); https://doi.org/10.1117/12.2193409
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
Back to Top