Gamma-Radiation Effects on Bragg Gratings Written by Femtosecond UV Laser in Ge-Doped Fibers

Author

Gusarov, A. ; Brichard, B. ; Nikogosyan, David N.

Author_Institution

SCK·CEN Beglian Nucl. Res. Center, Mol, Belgium

Volume

57

Issue

4

fYear

2010

Firstpage

2024

Lastpage

2028

Abstract

We studied the effect of Co⁶⁰ gamma-radiation on the position and the amplitude of fiber Bragg gratings. These gratings were written with a femtosecond UV laser in three different fibers, both intrinsically photosensitive and hydrogen sensitized. We have found that in contrast with the results obtained on gratings written with low-intensity UV lasers, the Bragg peak shift under irradiation is almost independent on fiber type, fiber sensitization or grating amplitude. The grating strength behavior depends on the fiber type.

Keywords

Bragg gratings; fibre lasers; gamma-ray effects; germanium; optical fibres; ultraviolet radiation effects; Bragg gratings written; Co⁶⁰; Ge; Ge-Doped Fibers; femtosecond ultraviolet laser; fiber Bragg gratings; fiber sensitization; gamma-radiation effects; grating amplitude; grating strength behavior; hydrogen sensitized; intrinsically photosensitive; Bragg gratings; Electromagnetic wave absorption; Fiber gratings; Fiber lasers; Gratings; Hydrogen; Ionizing radiation; Optical device fabrication; Optical fibers; Radiation effects; Sensitivity; Temperature measurement; Ultrafast optics; Writing; Femtosecond UV Laser; fiber Bragg gratings; ionizing radiation-induced Bragg wavelength shift; optical fiber gamma-radiation effects;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2009.2039494

Filename

5550316