High total dose radiation effects on temperature sensing fiber Bragg gratings

被引：71

作者：

Gusarov, AI ^{[1
]}

Berghmans, F

Deparis, O

Fernandez, AF

Defosse, Y

Mégret, P

Décreton, M

Blondel, M

机构：

[1] Fac Polytech Mons, B-7000 Mons, Belgium

[2] CEN SCK, Belgian Nucl Res Ctr, B-2400 Mol, Belgium

[3] Free Univ Brussels, Lab Photon, B-1050 Brussels, Belgium

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 09期

关键词：

fiber Bragg grating; gamma radiation; optical fiber sensor; radiation effects;

D O I：

10.1109/68.784237

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fiber Bragg gratings (FBG's) written in a 10 mol.% Ge-doped core silica fiber using a phase mask were exposed to gamma-radiation. The transmission and reflection spectra were recorded during irradiation up to doses in excess of I MGy. There,vas no detectable change of the Bragg peak amplitude and the grating temperature sensitivity. The radiation-induced shift of the Bragg wavelength saturated at a dose of 0.1 MGy at a level less than 25 pm, which could still be decreased by optimization of the grating parameters, Our results confirm that FBG's are good candidates for sensing applications in radiation environments.

引用

页码：1159 / 1161

页数：3

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