Radiation Vulnerability of Fiber Bragg Gratings in Harsh Environments

Author

Morana, Adriana ; Girard, Sylvain ; Marin, Emmanuel ; Marcandella, Claude ; Rizzolo, Serena ; Perisse, Jocelyn ; Mace, Jean-Reynald ; Taouri, Abdelillah ; Boukenter, Aziz ; Cannas, Marco ; Ouerdane, Youcef

Author_Institution

Lab. H. Curien, Univ. Jean Monnet, St. Etienne, France

Volume

33

Issue

12

fYear

2015

fDate

June15, 15 2015

Firstpage

2646

Lastpage

2651

Abstract

The difficulties encountered in the implementation of a temperature or strain sensor based on fiber Bragg grating (FBG) in a harsh radiative environment are introduced. We present the choices made to select both a radiation-resistant fiber in terms of transmission and also the grating inscription conditions necessary to write radiation tolerant FBGs in such fibers with a femtosecond laser. The radiation response of these gratings was also studied under radiation at dose up to 1 MGy. The comparison between Ge-free and Ge-doped fibers was highlighted.

Keywords

Bragg gratings; fibre optic sensors; germanium; high-speed optical techniques; strain sensors; temperature sensors; femtosecond laser; fiber Bragg grating; grating inscription conditions; harsh radiative environment; radiation tolerant FBG; radiation vulnerability; radiation-resistant fiber; strain sensor; temperature sensor; transmission; Fiber gratings; Fiber lasers; Gratings; Optical fiber sensors; Optical fibers; Radiation effects; Fiber; Fiber Bragg Grating; RIA; fiber Bragg grating; radiation; radiation-induced attenuation (RIA); silica;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2014.2364526

Filename

6934963