Bend sensors with direction recognition based on long-period gratings written in D-shaped fiber

Donghui Zhao, Xianfeng F. Chen, Kaiming Zhou, Lin Zhang, Ian Bennion, William N. MacPherson, James S. Barton, Julian D.C. Jones

Research output: Contribution to journalArticle

Abstract

The curvature- or bend-sensing response of long-period gratings (LPGs) UV inscribed in D-shaped fiber has been investigated experimentally. Strong fiber-orientation dependence of the spectral response when such LPGs are subjected to bending at different directions has been observed and is shown to form the basis for a new class of single-device sensor with vector-sensing capability. Potential applications utilizing the linear response and unique bend-orientation characteristics of the devices are discussed.

Original languageEnglish
Pages (from-to)5425-5428
Number of pages4
JournalApplied Optics
Volume43
Issue number29
DOIs
Publication statusPublished - 10 Oct 2004

Keywords

  • curvature response
  • bend-sensing response
  • long-period gratings
  • LPGs
  • UV inscribed in D-shaped fiber
  • fiber-orientation dependence
  • spectral respons
  • single-device sensor
  • vector-sensing capability
  • linear response
  • unique bend-orientation

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  • Cite this

    Zhao, D., Chen, X. F., Zhou, K., Zhang, L., Bennion, I., MacPherson, W. N., Barton, J. S., & Jones, J. D. C. (2004). Bend sensors with direction recognition based on long-period gratings written in D-shaped fiber. Applied Optics, 43(29), 5425-5428. https://doi.org/10.1364/AO.43.005425