Implementation of vectorial bend sensors using long-period gratings UV-inscribed in special shape fibres

D H Zhao, K M Zhou, X F Chen, L Zhang, I Bennion, G Flockhart, W N MacPherson, J S Barton, J D C Jones

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We report the implementation of vector bending sensors using long-period gratings (LPGs) UV-inscribed in flat-clad, four-core and D-shaped fibres. Our experiments reveal a strong fibre-orientation dependence of the spectral response when such LPGs are subjected to dynamic bending, which provided an opportunity to realize curvature measurement with direction recognition.

Original languageEnglish
Pages (from-to)1647-1650
Number of pages4
JournalMeasurement Science and Technology
Issue number8
Publication statusPublished - Aug 2004


  • implementation
  • vectorial bend sensors
  • long-period gratings
  • UV-inscribed
  • special shape fibres
  • instrumentation and measurement
  • spatial dimension
  • gratings
  • sensors
  • gyros

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