Title :
Stabilization of fiber Bragg gratings against gamma radiation
Author :
Gusarov, A. ; Vasiliev, S. ; Medvedkov, O. ; Mckenzie, I. ; Berghmans, F.
Author_Institution :
SCK-CEN, Mol, Belgium
Abstract :
The effect of gamma-radiation on the spectral characteristics of FBGs has been studied experimentally. The FBGs were fabricated in optical fibers with a GeO2 concentration in the core in a range from several to 99 mol.%. Various pre- and post-fabrication treatments were applied with the aim to improve the radiation tolerance of the FBGs. The best result was obtained for a Type IIa annealed grating written in SM310 fiber, where the Bragg peak shift saturated at a 12 pm level and an amplitude change of 0.04 dB with the maximal dose of about 50 kGy.
Keywords :
Bragg gratings; annealing; gamma-ray effects; germanium compounds; optical fibre fabrication; spectral line shift; Bragg peak shift; FBG; GeO2; SM310 fiber; annealing; fiber Bragg grating stabilization; gamma radiation effect; optical fiber fabrication; radiation tolerance; spectral characteristics; Annealing; Bragg gratings; Fiber gratings; Gamma rays; Optical fiber sensors; Optical fibers; Optical saturation; Sensor systems; Silicon compounds; Temperature sensors; Fiber Bragg Gratings; annealing; hydrogen loading; radiation effects;
Conference_Titel :
Radiation and Its Effects on Components and Systems, 2007. RADECS 2007. 9th European Conference on
Conference_Location :
Deauville
Print_ISBN :
978-1-4244-1704-9
DOI :
10.1109/RADECS.2007.5205516
