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Proceedings Paper

Distributed stress sensor based on a birefringent fiber Sagnac ring
Author(s): Michael Campbell; Gang Zheng; Peter A. Wallace; Sheila Smith
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Paper Abstract

This paper describes a novel configuration of a distributed optical fiber stress sensor based on a Sagnac ring construction. The principle of operation is based on the FMCW technique. The intensity and location of a stress applied to the fiber can be determined simultaneously by detecting the amplitude and the frequency of the beat signal which is produced by two forward-coupled mode beams in the Sagnac ring. The system was found to have a spatial resolution of 1 meter in a sensing range of 50 meters.

Paper Details

Date Published: 27 November 1996
PDF: 5 pages
Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, (27 November 1996); doi: 10.1117/12.259792
Show Author Affiliations
Michael Campbell, Glasgow Caledonian Univ. (United Kingdom)
Gang Zheng, Glasgow Caledonian Univ. (United Kingdom)
Peter A. Wallace, Glasgow Caledonian Univ. (United Kingdom)
Sheila Smith, Glasgow Caledonian Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2838:
Distributed and Multiplexed Fiber Optic Sensors VI
Alan D. Kersey; John P. Dakin, Editor(s)

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