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Proceedings Paper

Development of a distributed polarization-OTDR to measure two vibrations with the same frequency
Author(s): Yun Pan; Feng Wang; Xiangchuan Wang; Mingjiang Zhang; Ling Zhou; Zhenqing Sun; Xuping Zhang
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Paper 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.

Paper Details

Date Published: 10 August 2015
PDF: 8 pages
Proc. SPIE 9620, 2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 962002 (10 August 2015); doi: 10.1117/12.2193409
Show Author Affiliations
Yun Pan, Institute of Optical Communication Engineering (China)
Feng Wang, Institute of Optical Communication Engineering (China)
Xiangchuan Wang, Institute of Optical Communication Engineering (China)
Mingjiang Zhang, Taiyuan Univ. of Technology (China)
Ling Zhou, Institute of Optical Communication Engineering (China)
Zhenqing Sun, Institute of Optical Communication Engineering (China)
Xuping Zhang, Institute of Optical Communication Engineering (China)


Published in SPIE Proceedings Vol. 9620:
2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Xuping Zhang; David Erickson; Xudong Fan; Zhongping Chen, Editor(s)

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