32 km distributed temperature sensor based on Brillouin loss in an optical fibre


We present a novel distributed temperature sensor that uses the temperature dependence of the frequency at which the loss is maximized in the interaction between a cw laser and a pulsed laser. With a 32-km sensing length, a temperature resolution of 1°C has been achieved; it is also shown that a spatial resolution of 5 m may be obtained.

Publication DOI: https://doi.org/10.1364/OL.18.001561
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 1993 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: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-18-18-1561. 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 temperature sensor,temperature dependence
Publication ISSN: 1539-4794
Last Modified: 01 Jan 2024 08:03
Date Deposited: 23 Mar 2011 14:28
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Related URLs: http://www.opti ... ol-18-18-1561 . (Publisher URL)
PURE Output Type: Article
Published Date: 1993-09-15
Authors: Bao, X.
Webb, David J. (ORCID Profile 0000-0002-5495-1296)
Jackson, David A.



Version: Published Version

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