Resonant cavity based fibre Bragg grating sensor interrogation using ratiometric detection

Glynn Lloyd, Lorna Everall, Kate Sugden, Ian Bennion

Research output: Contribution to journalArticle

Abstract

Time-division-multiplexing of fibre Bragg gratings using a novel resonant cavity architecture is described. Independent extraction of amplified optical signals from individual sensors is demonstrated, making it possible to use a low-cost, passive wavelength measurement technique for sensor readout. Using a commercial ratiometric filter component, the complete interrogation system remains simple and solid-state. Results show that the configuration has the capability to deliver static measurements with picometre resolution, or to perform vibration analysis at up to 4.4 kHz.
Original languageEnglish
Pages (from-to)193-197
Number of pages5
JournalOptics Communications
Volume244
Issue number1-6
Early online date1 Oct 2004
DOIs
Publication statusPublished - 3 Jan 2005

Keywords

  • optical fibre sensing
  • ratiometric detection
  • resonant cavity
  • time-division-multiplexing

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