Noise limit in heterodyne interferometer demodulator for FBG based sensors

H. L. Ho, C. Z. Shi, Wei Jin, C. C. Chan, P. C K Chan, Y. Zhou, Y. B. Liao

Research output: Journal article publicationConference articleAcademic researchpeer-review


This paper reports the results of our recent investigation on the noise limited performance in heterodyne interferometric demodulation systems for fiber Bragg grating strain sensors. Theoretical and simulation results are presented and compared with experimental results.
Original languageEnglish
Article number11
Pages (from-to)80-92
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 1
Publication statusPublished - 1 Dec 2004
EventPhotonics North 2004: International Conference on Applications of Photonic Technology, ICAPT - Ottawa, Ont., Canada
Duration: 26 Sep 200429 Sep 2004


  • Dynamic strain
  • Fiber bragg grating
  • Heterodyne interferometric demodulation

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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