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Proceedings Paper

100-km long distance FBG vibration sensor based on matching filter demodulation
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Paper Abstract

A 100-km long distance fiber Bragg Grating (FBG) vibration sensor system is demonstrated by using a Raman pump laser source at 1395 nm and two segments of erbium doped fiber (EDF). The reflected spectrum of FBG has 30dB signal noise ratio. By using a wavelength matched FBG to achieve wavelength demodulation, vibration frequencies from 1Hz to 1000Hz has been effectively detected in this 100km long distance vibration sensor system.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538N (18 May 2011); doi: 10.1117/12.884978
Show Author Affiliations
Junhao Hu, National Univ. of Singapore (Singapore)
Zhihao Chen, A*STAR Institute for Infocomm Research (Singapore)
Ju Teng Teo, A*STAR Institute for Infocomm Research (Singapore)
Changyuan Yu, National Univ. of Singapore (Singapore)
A*STAR Institute for Infocomm Research (Singapore)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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