The fiber optic Sagnac interferometer and its sensing application

Yuanhong Yang, Lin Lu, Fuling Yang, Yuxuan Chen, Wei Jin

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)


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
ISBN (Electronic)9781467377324
Publication statusPublished - 24 Nov 2015
EventOptoelectronics Global Conference, OGC 2015 - Shenzhen, China
Duration: 29 Aug 201531 Aug 2015


ConferenceOptoelectronics Global Conference, OGC 2015


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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics


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