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Proceedings Paper

Fibre Bragg gratings wavelength evolution and thermal sensitivity under gamma irradiation
Author(s): D. Kinet; C. Broadway; A. Gusarov; P. Mégret; C. Caucheteur
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Paper Abstract

Fibre Bragg gratings (FBGs) can be used as strain, temperature and external refractive index sensor in various application domains and more particularly in harsh environments such as nuclear plants, radioactive waste storages or in a space environment inside artificial satellites. In this study, we report the wavelength and temperature sensitivity radiation response of FBGs written in different optical fibres and thanks to different lasers and methods of inscription. We show that the Bragg wavelength radiation-induced shift depends only on the core doping and not of the type of laser, but in all cases, the temperature sensitivity is modified with gamma irradiation.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111990F (28 August 2019); doi: 10.1117/12.2539967
Show Author Affiliations
D. Kinet, Univ. de Mons (Belgium)
C. Broadway, Univ. de Mons (Belgium)
A. Gusarov, SCK-CEN Belgian Nuclear Research Ctr. (Belgium)
P. Mégret, Univ. de Mons (Belgium)
C. Caucheteur, Univ. de Mons (Belgium)

Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

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