Frequency domain technique for multiplexing of fiber Bragg grating sensors

Peter K C Chan, Wei Jin, M. S. Demokan

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

We report on the use of a frequency-domain reflectometry technique for multiplexing fiber Bragg grating (FBG) sensors. This technique is based on the modulation of light intensity from a broadband source by a swept-frequency RF carrier. Signals from the FBG sensors located at different positions in an array are separated in the frequency-domain and demodulated using a tunable optical filter. A three FBG sensor system is experimentally demonstrated. The potential of the technique for multiplexing a large number of FBG sensors is discussed.
Original languageEnglish
Pages (from-to)488-496
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3897
Publication statusPublished - 1 Dec 1999
EventProceedings of the 1999 Advanced Photonic Sensors and Applications - Singapore, Singapore
Duration: 30 Nov 19993 Dec 1999

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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