Distributed temperature change sensor, based on Rayleigh backscattering in an optical fibre


A frequency-modulated continuous-wave technique is used to detect the presence of frequency shifts in the Rayleigh-backscattered light in a single-mode optical fiber as a result of a changing temperature. The system is able to detect a rate of temperature change of 0.014 K/s, when a 20-cm length of fiber is heated. The system is also able to demonstrate a spatial resolution of better than 15 cm.

Publication DOI: https://doi.org/10.1364/OL.19.000593
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: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-8-593. 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: frequency-modulated continuous-wave technique,frequency shifts,Rayleigh-backscattered light,single-mode optical fiber,changing temperature
Publication ISSN: 1539-4794
Last Modified: 27 Dec 2023 08:03
Date Deposited: 23 Mar 2011 14:28
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Related URLs: http://www.opti ... URI=ol-19-8-593 (Publisher URL)
PURE Output Type: Article
Published Date: 1994
Authors: Rathod, R.
Pechstedt, R.D.
Jackson, David A.
Webb, David J. (ORCID Profile 0000-0002-5495-1296)



Version: Published Version

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