A temperature-insensitive Bragg grating sensor - using orthogonal polarisation modes for in situ temperature compensation
A temperature-insensitive Bragg grating sensor - using orthogonal polarisation modes for in situ temperature compensation
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.
428-432
Parker, Richard M.
b052ca4d-b6c7-4fdd-a2f9-45032f0ff13f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Grossel, M.C.
403bf3ff-6364-44e9-ab46-52d84c6f0d56
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
4 March 2010
Parker, Richard M.
b052ca4d-b6c7-4fdd-a2f9-45032f0ff13f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Grossel, M.C.
403bf3ff-6364-44e9-ab46-52d84c6f0d56
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
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), .
(doi:10.1016/j.snb.2009.12.059).
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.
Text
polarisation compensation.pdf
- Accepted Manuscript
More information
Published date: 4 March 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
Catalogue record
Date deposited: 27 Apr 2010 14:05
Last modified: 14 Mar 2024 02:45
Export record
Altmetrics
Contributors
Author:
Richard M. Parker
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
