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A temperature-insensitive Bragg grating sensor - using orthogonal polarisation modes for in situ temperature compensation

Parker, Richard M., Gates, J.C., Grossel, M.C. and Smith, P.G.R. (2010) A temperature-insensitive Bragg grating sensor - using orthogonal polarisation modes for in situ temperature compensation Sensors and Actuators A: Physical, 145, (1), pp. 428-432. (doi:10.1016/j.snb.2009.12.059).

Record type: Article

Abstract

An exposed Bragg grating incorporated into a planar waveguide forms an optical device that acts as a refractive index sensor. The exposed evanescent field causes the Bragg peak to be sensitive to the refractive index of its surroundings and can be used to detect changes in this environment. The method reported is able to provide accurate temperature compensation by applying a scaling factor derived from measurement of the birefringence of the transverse electric (TE) and transverse magnetic (TM) modes of the Bragg reflection. For a fluid sensor, fluctuations in ambient temperature can be both accounted for and compensated to produce a temperature-insensitive sensor.

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More information

Published date: 2010
Organisations: Optoelectronics Research Centre, Chemistry, Electronics & Computer Science

Identifiers

Local EPrints ID: 148221
URI: http://eprints.soton.ac.uk/id/eprint/148221
ISSN: 0924-4247
PURE UUID: 0e87a343-d21f-438b-9413-1dd66ede290a
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for M.C. Grossel: ORCID iD orcid.org/0000-0001-7469-6854

Catalogue record

Date deposited: 27 Apr 2010 14:05
Last modified: 21 Sep 2017 16:32

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