• D. Zhao
  • K. Zhou
  • Xianfeng Chen
  • L. Zhang
  • I. Bennion
  • W. N. MacPherson
  • J. S. Barton
  • J. D. C. Jones
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
JournalMeasurement Science and Technology
Volume15
Issue number78
Publication statusPublished - 19 Jul 2004
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