Simultaneous spatial, time and wavelength division multiplexed in-fibre grating sensing network

Y.J. Rao, A.B. Lobo Ribeiro, D.A. Jackson, L. Zhang, I. Bennion

Research output: Contribution to journalArticlepeer-review

Abstract

A simultaneous spatial, time and wavelength division multiplexing topology, with combination of a tunable wavelength filter and an √interferometric wavelength scanner, is proposed to interrogate a range of in-fibre Bragg grating (FBG) sensors. An eleven-element FBG sensor network based upon this topology is demonstrated for quasi-static strain sensing. Preliminary experimental results show that a strain resolution of ∼7 μϵ with a ∼30 Hz bandwidth  ( ∼ 1.3 μ∈/√HZ) for quasi-static strain measurement has been obtained.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalOptics Communications
Volume125
Issue number1-3
DOIs
Publication statusPublished - 1 Apr 1996

Keywords

  • bandwidth
  • diffraction gratings
  • electric network topology
  • fiber optic networks
  • frequency division multiplexing
  • optical filters
  • optical resolving power
  • strain management

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