Practical birefringent fiber Sagnac ring force sensor

Gang Zheng*, Michael Campbell, Peter A. Wallace, A. Sheila Holmes-Smith

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A practical birefringent fiber Sagnac ring force sensor has been demonstrated. The sensor is based on the frequency modulation continuous wave technique and simply consists of a birefringent fiber ring. The intensity and the 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 as a result of the applied stress. Similarly, the strain variation of one section of the fiber ring can also be measured by analyzing the phase shift of this beat signal. The experiments demonstrate that resolutions of 1 meter for distributed stress measurements and 4 microstrains for strain measurements can be obtained with this sensor system.

Original languageEnglish
Title of host publicationProceedings Volume 2895, Fiber Optic Sensors V
EditorsKim D. Bennett, Byoung Yoon Kim, Yanbiao Liao
PublisherSPIE
Pages196-200
Number of pages5
ISBN (Print)0819422967, 9780819422965
DOIs
Publication statusPublished - 24 Sept 1996
EventPhotonics China '96 - Beijing, China
Duration: 6 Nov 19967 Nov 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2895
ISSN (Print)0277-786X

Conference

ConferencePhotonics China '96
Country/TerritoryChina
CityBeijing
Period6/11/967/11/96

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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