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Proceedings Paper

Quasi-distributed fiber sensor based on Fresnel-reflection-enhanced Incomplete-POTDR system
Author(s): Chaodong Wang; Yaling Zhou; Hui Dong; Ming Tang; Songnian Fu; Perry Shum
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Paper Abstract

A novel scheme of quasi-distributed vibration disturbances detection system based on incomplete Polarization optical time domain reflectometry was proposed. The system was enhanced by employing Fresnel-reflection caused by FC/PC connector, which can improve the signal’s SNR significantly, while the temporal depolarization effect can be almost completely suppressed. Without performing any data averaging, the intrusion event can be detected and located precisely/instantaneously with good stability. Also the frequency components of vibration events applying on sensing fiber can be obtained with large dynamic range. It shows a very good potential in intrusion detection, vibration frequency measuring, etc.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347F (28 September 2015); doi: 10.1117/12.2194481
Show Author Affiliations
Chaodong Wang, Huazhong Univ. of Science and Technology (China)
Yaling Zhou, Huazhong Univ. of Science and Technology (China)
Hui Dong, Institute for Infocomm Research (Singapore)
Ming Tang, Huazhong Univ. of Science and Technology (China)
Songnian Fu, Huazhong Univ. of Science and Technology (China)
Perry Shum, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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