Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source

Geoffrey A. Cranch, Gordon M. H. Flockhart, Clay K. Kirkendall

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
205 Downloads (Pure)

Abstract

An efficient multiplexing method for fiber Bragg grating sensors based on a broadband mode-locked laser source and interferometric interrogation is described. The system has the capability to interrogate several hundred fiber Bragg grating sensors on a single fiber, whilst achieving sub-microstrain resolution over bandwidths greater than 100 kHz. A demonstration system with 8 sensors is presented, which achieves strain resolutions less than 213 n epsilon/Hz(1/2) up to 100 Hz.
Original languageEnglish
Title of host publication17th International Conference on Optical Fibre Sensors, Pts 1 and 2
EditorsM Voet, R Willsch, W Ecke, J Jones, B Culshaw
Place of PublicationNew York
Pages238-241
Number of pages4
DOIs
Publication statusPublished - 2005
Event17th International Conference on Optical Fibre Sensors - Brugge, Belgium
Duration: 23 May 200527 May 2005

Publication series

NameProceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE)
PublisherSPIE
Volume5855
ISSN (Print)0277-786X

Conference

Conference17th International Conference on Optical Fibre Sensors
CountryBelgium
CityBrugge
Period23/05/0527/05/05

Keywords

  • time division multiplexing
  • mode-locked laser
  • fiber Bragg grating sensor
  • phase-sensitive detection
  • interrogation
  • scheme

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