Multiplexing Bragg gratings using combined wavelength and spatial division techniques with digital resolution enhancement

Y. Hu, S. Chen, L. Zhang, I. Bennion

Research output: Contribution to journalArticle

Abstract

A novel multiplexing technique is described, which employs an imaging spectrograph to interrogate fibre Bragg gratings in multiple fibre channels simultaneously, and digital algorithms to enhance the spectral resolution. An equivalent strain sensing resolution of 1.6 µɛ has been achieved in the preliminary experiments.
Original languageEnglish
Pages (from-to)1973-1975
Number of pages3
JournalElectronics letters
Volume33
Issue number23
DOIs
Publication statusPublished - 6 Nov 1997

Keywords

  • fibre optic sensors
  • gratings in fibres
  • multiplexing equipment

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