Combined distributed temperature and strain sensor based on Brillouin loss in an optical fiber


We present a novel distributed sensor that utilizes the temperature and strain dependence of the frequency at which the Brillouin loss is maximized in the interaction between a cw laser and a pulsed laser. With a 22-km sensing length, a strain resolution of 20 µ? and a temperature resolution of 2°C have been achieved with a spatial resolution of 5 m.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 1994 The Optical Society. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: distributed sensor,temperature and strain dependence,frequency,Brillouin loss
Publication ISSN: 1539-4794
Last Modified: 27 Jun 2024 07:34
Date Deposited: 23 Mar 2011 14:28
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Related URLs: http://www.opti ... URI=ol-19-2-141 (Publisher URL)
PURE Output Type: Article
Published Date: 1994-01-15
Authors: Bao, X.
Webb, David J. (ORCID Profile 0000-0002-5495-1296)
Jackson, David A.



Version: Published Version

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