A novel sensor interrogation technique using chirped fiber grating based Sagnac loop

Donghui Zhao, Xuewen Shu, Lin Zhang, Ian Bennion

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

Abstract

We demonstrate a novel and simple sensor interrogation scheme for fiber Bragg grating (FBG) based sensing systems. In this scheme, a chirped FBG based Sagnac loop is used as a wavelength-dependent receiver, and a stable and linear readout response is realised. It is a signijkant advantage of this scheme that the sensitivity and the measurement wavelength range can be easily adjhsted by controlling the chirp of the FBG or using an optical delay line in the Sagnac loop.
Original languageEnglish
Title of host publicationProceedings of 1st International Conference on Sensors, 2002
PublisherIEEE
Pages1351-1353
Number of pages3
Volume2
ISBN (Print)978-0-7803-7454-6
DOIs
Publication statusPublished - 2002
Event1st IEEE international conference on Sensors - Orlando, FL, United States
Duration: 12 Jun 200214 Jun 2002

Conference

Conference1st IEEE international conference on Sensors
Abbreviated titleIEEE Sensors 2002
CountryUnited States
CityOrlando, FL
Period12/06/0214/06/02

Keywords

  • sensor interrogation
  • chirped fiber grating
  • Sagnac loop

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  • Effectively simultaneous temperature and strain measurement utilising a dual-grating sensor formed by type IA and type IIA FBGs

    Shu, X., Zhao, D., Liu, Y., Gwandu, Y., Floreani, F. & Zhang, L., 7 Nov 2002, Proceeding of the 1st IEEE international conference on sensors. IEEE, Vol. 2. p. 1740-1745 6 p.

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

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