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Proceedings Paper

High-resolution distributed sensor using dark Brillouin scattering
Author(s): Anthony W. Brown; Kellie A. Brown; Bruce G. Colpitts
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Paper Abstract

Distributed sensors based on time-domain Brillouin scattering have typically had spatial resolutions in the metre range, with some advanced systems improving upon this by an order of magnitude. Resolution in the centimetre range generally has been made possible by using correlation based systems or frequency-domain approaches. Both of these techniques suffer from practical limits on overall sensing length and/or acquisition speed. We present a new technique which uses dark pulses to implement a time-domain sensor system that provides centimetre resolution, short acquisition times and minimal restrictions on sensing length. The method is verified through simulation and results are shown to demonstrate the technique's efficacy in two practical applications.

Paper Details

Date Published: 30 March 2006
PDF: 10 pages
Proc. SPIE 6167, Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications, 616718 (30 March 2006); doi: 10.1117/12.657656
Show Author Affiliations
Anthony W. Brown, Univ. of New Brunswick (Canada)
Kellie A. Brown, Univ. of New Brunswick (Canada)
Bruce G. Colpitts, Univ. of New Brunswick (Canada)

Published in SPIE Proceedings Vol. 6167:
Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications
Daniele Inaudi; Wolfgang Ecke; Brian Culshaw; Kara J. Peters; Eric Udd, Editor(s)

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