Ultrasonic field and temperature sensor based on short in-fibre Bragg gratings

N.E. Fisher, David J. Webb, C.N. Pannell, David A. Jackson, L.R. Gavrilov, J.W. Hand, Lin Zhang, Ian Bennion

Research output: Contribution to journalArticlepeer-review


The authors demonstrate that in-fibre Bragg gratings may be successfully used to measure megahertz acoustic fields if the grating length is sufficiently short and the optical fibre is appropriately desensitised. A noise-limited pressure resolution of 4.5 × 10 –3 atm vHz was found. The capability to simultaneously act as a temperature sensor is also demonstrated.
Original languageEnglish
Pages (from-to)1139-1140
Number of pages2
JournalElectronics letters
Issue number11
Publication statusPublished - 28 May 1998


  • in-fibre Bragg gratings
  • measure megahertz acoustic fields
  • grating length
  • optical fibre
  • desensitisation
  • temperature sensor


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