@inproceedings{c82ab77d9ff54c51a0f5ac1b26235311,
title = "Effect of radiation and temperature on high temperature resistant fiber bragg gratings",
abstract = "Fiber Bragg gratings can be used to monitor temperature or strain in harsh environments. We investigate the effect of Xrays on type III gratings - also called void gratings -which are known for their capacity to withstand high temperatures. The tested gratings are inscribed in a SMF28 germanosilicate optical fiber using the point-by-point method and a frequency-doubled Yb femtosecond laser emitting at 515 nm. The tested FBGs are separated in two groups depending on their reflectivity levels (Low/High). Half of each group is pre-annealed at a temperature of 750°C during 30 min. We have irradiated all the gratings up to 100 kGy(SiO2) at a dose-rate of 10 Gy/s at two different irradiation temperatures: 25°C and 150°C. For all the irradiations, the grating radiation response is identical independently of the chosen writing and preannealing conditions. When the irradiation is performed at 25°C, a Bragg wavelength shift of 10 pm is observed for all the gratings, which represents an error of less than 1°C at the total dose of 100 kGy while at 150°C the Bragg peak shift only of less than 4 pm corresponding to an error of 0.3°C.",
keywords = "FBG, Fiber Bragg Grating, High temperature, Optical fiber, Radiation",
author = "Thomas Blanchet and Romain Cotillard and Adriana Morana and Rudy Desmarchelier and Emmanuel Marin and Youcef Ouerdane and Aziz Boukenter and Damien Fourmentel and St{\'e}phane Breaud and Andrei Goussarov and Christophe Destouches and Sylvain Girard and Guillaume Laffont",
note = "Score=10; 2022 - SPIE Photonics Europe : Optical Sensing and Detection VII, SPIE ; Conference date: 09-05-2022 Through 15-05-2022",
year = "2022",
month = may,
day = "15",
doi = "10.1117/12.2621473",
language = "English",
isbn = "978-151065154-8",
series = "Optical Sensing and Detection",
publisher = "SPIE",
number = "1213914",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
}