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The fiber optic Sagnac interferometer and its sensing application

  • Beihang University
  • Hong Kong Polytechnic University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The fiber optic Sagnac interferometer which comprise of a broadband source, a fiber optic coupler and special sensing fiber has great application potentiality. The characteristic of output spectrum was investigated and high precision polarization maintaining fiber (PMF) beat-length measurement was achieved. Hydrogen concentration and pressure sensor with PM photonic crystal fiber was demonstrated. A spectrum interrogation methods based on absolution phase interrogation were proposed.

Original languageEnglish
Title of host publication2015 Optoelectronics Global Conference, OGC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467377324
DOIs
StatePublished - 24 Nov 2015
EventOptoelectronics Global Conference, OGC 2015 - Shenzhen, China
Duration: 29 Aug 201531 Aug 2015

Publication series

Name2015 Optoelectronics Global Conference, OGC 2015

Conference

ConferenceOptoelectronics Global Conference, OGC 2015
Country/TerritoryChina
CityShenzhen
Period29/08/1531/08/15

Keywords

  • beat-length measurement
  • hydrogen sensor
  • pressure sensor
  • Sagnac interferometer
  • spectrum interrogation algorithm

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