Fibre Bragg gratings wavelength evolution and thermal sensitivity under gamma irradiation

D. Kinet; C. Broadway; A. Gusarov; P. Mégret; C. Caucheteur

doi:10.1117/12.2539967

28 August 2019 Fibre Bragg gratings wavelength evolution and thermal sensitivity under gamma irradiation

D. Kinet, C. Broadway, A. Gusarov, P. Mégret, C. Caucheteur

Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111990F (2019) https://doi.org/10.1117/12.2539967
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

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.

Citation Download Citation

D. Kinet, C. Broadway, A. Gusarov, P. Mégret, and C. Caucheteur "Fibre Bragg gratings wavelength evolution and thermal sensitivity under gamma irradiation", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111990F (28 August 2019); https://doi.org/10.1117/12.2539967

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