Measured sensitivity of arc-induced long-period grating sensors in photonic crystal fibre

Helen L. Dobb, Kyriacos Kalli, David J. Webb

Research output: Contribution to journalArticle

Abstract

Reported are experimental results from investigations of the sensing properties of long-period gratings (LPGs) recorded in two different geometries of photonic crystal fibre (PCF): a large-mode area PCF and an endlessly single mode PCF. The LPGs have been characterised for their sensitivity to temperature, bending, surrounding index and strain. The LPGs in both fibres have been found to have negligible temperature sensitivity whilst exhibiting useful strain sensitivities. Strong directional bend sensitivity is shown by one PCF whilst the other shows good non-directional bend sensitivity. The fibres exhibit differing sensitivities to surrounding refractive index. © 2005 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)184-191
Number of pages8
JournalOptics Communications
Volume260
Issue number1
DOIs
Publication statusPublished - 1 Apr 2006

Keywords

  • crystal
  • fibre
  • optical
  • photonic
  • sensing

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