Brady, G.P. and Kalli, Kyriacos and Webb, David J. and Jackson, David A. and Zhang, Lin and Bennion, Ian (1996) Recent developments in optical fibre sensing using fibre Bragg gratings. In: DePaula, Ramon P. and Berthold, John W., eds. Fiber Optic and Laser Sensors XIV. Proceedings of SPIE . SPIE, pp. 8-19. ISBN 0-8194-2227-4. (doi:10.1117/12.255350) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:18843)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://dx.doi.org/10.1117/12.255350 |
Abstract
We report on recent work on sensing using in-fiber Bragg gratings carried out in our laboratory. First, an alternative method of discriminating between temperature and strain effects using a conventionally written, in-fiber Bragg grating is presented. The technique uses wavelength information from the first and second diffraction orders of the grating element to determine the wavelength dependent strain and temperature coefficients, from which independent temperature and strain measurements can be made. Secondly, we describe an all-fiber, passive scheme for making extended range interferometric measurements based on the dual wavelength technique. A coherence turned interferometer network is illuminated with a single superfluorescent fiber source at 1.55 mm and the two wavelengths are synthesized at the output by means of chirped fiber Bragg gratings.
Item Type: | Book section |
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DOI/Identification number: | 10.1117/12.255350 |
Uncontrolled keywords: | optical fibre sensing; Bragg grating; temperature; strain; low coherence; dual wavelength |
Subjects: |
T Technology > TK Electrical engineering. Electronics. Nuclear engineering Q Science > QC Physics |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | M.A. Ziai |
Date Deposited: | 16 May 2009 05:12 UTC |
Last Modified: | 16 Nov 2021 09:57 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/18843 (The current URI for this page, for reference purposes) |
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