Quasi-distributed fiber sensor based on Fresnel-reflection-enhanced Incomplete-POTDR system

Quasi-distributed fiber sensor based on Fresnel-reflection-enhanced Incomplete-POTDR system
Title:
Quasi-distributed fiber sensor based on Fresnel-reflection-enhanced Incomplete-POTDR system
Other Titles:
Proceedings of SPIE Volume 9634
Publication Date:
28 September 2015
Citation:
Chaodong Wang ; Yaling Zhou ; Hui Dong ; Ming Tang ; Songnian Fu, et al. " Quasi-distributed fiber sensor based on Fresnel-reflection-enhanced Incomplete-POTDR system ", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347F (September 28, 2015); doi:10.1117/12.2194481; http://dx.doi.org/10.1117/12.2194481
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.
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Funding Info:
Description:
Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
ISBN:
9781628418392
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