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


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

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Description/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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.snb.2009.12.059
ISSNs: 1054-6693 (print)
Related URLs:
Subjects: Q Science > QD Chemistry
Organisations: Electronics & Computer Science
ePrint ID: 148221
Date :
Date Event
2010Published
Date Deposited: 27 Apr 2010 14:05
Last Modified: 18 Apr 2017 14:34
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/148221

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