Effect of Grating Fabrication on Radiation Sensitivity of Fiber Bragg Gratings in Gamma Radiation Field

Author

Lin, Song ; Song, Ningfang ; Jin, Jing ; Wang, Xueqin ; Yang, Gongliu

Author_Institution

Inst. of Opto-Electron. Technol., Beijing Univ. of Aeronaut. & Astronaut. (BUAA), Beijing, China

Volume

58

Issue

4

fYear

2011

Firstpage

2111

Lastpage

2117

Abstract

The influence of grating fabrication on radiation sensitivity of the FBGs has been investigated experimentally. The FBGs were fabricated in different process and GeO₂ concentrations. Pre-irradiation and H₂-loading were applied to change the radiation sensitivity of the FBGs. The FBGs were fabricated in photosensitive fiber and coupling single mode fiber with a GeO₂ concentration in a range from 0.33 to 23 mol%. The lowest Bragg wavelength shift (13 pm) was obtained by a grating written in photosensitive fiber PSF-GeB-125, with pre-irradiation and without H₂-loading for a total dose of about 50 kGy.

Keywords

Bragg gratings; gamma-rays; optical fibres; radiation effects; FBG; GeO₂ concentration; H₂-loading; PSF-GeB-125; coupling single mode fiber; fiber Bragg gratings; gamma radiation field; grating fabrication effect; lowest Bragg wavelength shift; photosensitive fiber; radiation sensitivity; Fiber gratings; Gratings; Radiation effects; Sensitivity; Temperature measurement; Temperature sensors; Fiber Bragg grating; gamma radiation; grating fabrication; radiation effect;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2011.2160205

Filename

5963746