Bend measurement using Bragg gratings in multicore fibre

M.J. Gander, William N. MacPherson, R. McBride, Julian D.C. Jones, Lin Zhang, Ian Bennion, P.M. Blanchard, J.G. JBurnett, A.H. Greenaway

Research output: Contribution to journalArticlepeer-review

Abstract

The first measurements of curvature made using Bragg gratings written in separate cores of a multicore optical fibre are described. The gratings act as independent, but isothermal, strain gauges. The difference in Bragg wavelength between the gratings provides a temperature-independent measurement of the local curvature.

Original languageEnglish
Pages (from-to)120-121
Number of pages2
JournalElectronics letters
Volume36
Issue number2
DOIs
Publication statusPublished - 20 Jan 2000

Keywords

  • Bragg gratings
  • curvature measurement
  • fibre optic sensors
  • optical fibre testing
  • strain gauges

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