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


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.

Uncontrolled Keywords: photonic, crystal, fibre, optical, sensing
Publication ISSN: 0030-4018
Last Modified: 23 Oct 2019 10:37
Date Deposited: 28 Jul 2010 12:38
Published Date: 2006-04-01
Authors: Dobb, Helen L.
Kalli, Kyriacos
Webb, David J.


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