Optical bend sensor for vector curvature measurement based on Bragg grating in eccentric core polymer optical fibre

X. Chen, C. Zhang, D.J. Webb, R. Suo, G.D. Peng, K. Kalli

Research output: Chapter in Book/Published conference outputChapter

Abstract

We present an optical bend sensor based on a Bragg grating written in an eccentric core polymer optical fibre. The grating wavelength shifts are studied as a function of bend curvature and fibre orientation and the device exhibits strong fibre orientation dependence, wide bend curvature range of ± 22.7 m-1 and high bend sensitivity of 63 pm/m-1, which is 80 times higher than the reported sensor based on an offset-FBG in standard single mode silica fibre.
Original languageEnglish
Title of host publication20th International Conference on Optical Fibre Sensors
EditorsJulian Jones, Brian Culshaw, Wolfgang Ecke, José Miguel López-Higuera, Reinhardt Willsch
PublisherSPIE
Number of pages4
Volume7503
ISBN (Print)978-0-8194-7814-6
DOIs
Publication statusPublished - Oct 2009
Event20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom
Duration: 5 Oct 20099 Oct 2009

Publication series

NameSPIE proceedings
PublisherSPIE
Volume7503
ISSN (Print)0277-786X

Conference

Conference20th International Conference on Optical Fibre Sensors
Country/TerritoryUnited Kingdom
CityEdinburgh
Period5/10/099/10/09
OtherThe International Conference on ‘Optical Fibre Sensors’ is acknowledged as the world’s leading conference on all topics related to fibre-optic, guided-wave and optical sensing devices, systems, theories and techniques for research and applications.

Bibliographical note

X. Chen ; C. Zhang ; D. J. Webb ; R. Suo ; G. D. Peng and K. Kalli
"Optical bend sensor for vector curvature measurement based on Bragg grating in eccentric core polymer optical fibre", Julian Jones ; Brian Culshaw ; Wolfgang Ecke ; José Miguel López-Higuera ; and Reinhardt Willsch (eds); Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750327 (October 05, 2009).
Copyright 2009 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
http://dx.doi.org/10.1117/12.834958

Keywords

  • optical bend sensor
  • Bragg grating
  • eccentric core polymer optical fibre
  • grating wavelength shifts
  • bend curvature
  • fibre orientation
  • strong fibre orientation dependence
  • single mode silica fibre

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