Temperature-insensitive long period grating sensors in photonic crystal fibre

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

Research output: Contribution to journalArticlepeer-review

Abstract

A long period grating has been fabricated in endlessly single-mode photonic crystal fibre using a spatially-periodic electric arc discharge. The sensing characteristics of the grating have been studied and it was found to possess an insensitivity to temperature, a bend sensitivity of 3.7 nm · m and a strain sensitivity of -2.0 pm/µe.
Original languageEnglish
Pages (from-to)657-658
Number of pages2
JournalElectronics letters
Volume40
Issue number11
DOIs
Publication statusPublished - 27 May 2004

Bibliographical note

This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

Keywords

  • diffraction gratings
  • fibre optic sensors
  • optical fibre fabrication
  • photonic crystals
  • bend sensitivity
  • periodic electric arc discharge
  • photonic crystal fibre
  • sensing characteristics
  • strain sensitivity
  • temperature insensitive long period grating sensors

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