Open AccessEffects of Gamma and Electron Beam Irradiation on FBG and DFB-FL
Author(s) -
Haiyu Qi,
Dan Sporea,
Andrei Stǎncǎlie,
Daniel Ighigeanu,
Daniel Neguţ,
Chang Wang,
Gang-Ding Peng
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2112/1/012005
Subject(s) - irradiation , materials science , attenuation , optics , fiber bragg grating , optoelectronics , laser , radiation , cathode ray , grating , wavelength , distributed feedback laser , electron , physics , quantum mechanics , nuclear physics
This paper reports the comparative experimental study concerning the irradiation effects of gamma-ray and electron beam on fiber Bragg grating (FBG) and distributed feedback fiber laser (DFB-FL). The obvious reflection wavelength shifts are observed for FBGs and DFB-FLs without evident changes in reflectivity and bandwidth under the current experimental irradiation condition, up to 60 kGy gamma radiation and 100 kGy electron beam radiation, respectively. Especially for DFB-FLs, evident attenuation in output power is observed and the rising tendency of the attenuation under increasing irradiation dose is demonstrated as well. Thus, the DFB-FLs are more suitable for radiation detection as compared to passive FBGs.