Temperature-insensitive long period grating sensors in photonic crystal fibre

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

Research output: Contribution to journalArticlepeer-review


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
Issue number11
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.


  • 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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