Temperature characterisation of long-period gratings for sensor applications

O'Flaherty, Fin, Ghassemlooy, Zabih, Mangat, P. S. and Dowker, K. (2004) Temperature characterisation of long-period gratings for sensor applications. Microwave and Optical Technology Letters, 42 (5). pp. 402-405. ISSN 0895-2477

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Official URL: http://dx.doi.org/10.1002/mop.20317

Abstract

Long-period gratings, which display sensitivity to ambient temperature variations, are proposed as sensors. Therefore, full temperature characterisation is essential. In this paper, the effects of temperature upon the spectral profiles of two sets of long period gratings (LPGs) of different periods are investigated. The results obtained show that the shorter-period LPGs were found to be less sensitive than the longer-period LPGS over identical temperature ranges. The coupling wavelength shifts due to temperature are also seen to be linear and in opposite directions in each set of LPGs.

Item Type: Article
Uncontrolled Keywords: long period gratings, sensors, temperature, concrete deterioration
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 25 Apr 2014 08:53
Last Modified: 29 Feb 2016 15:23
URI: http://nrl.northumbria.ac.uk/id/eprint/16138

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