par Gusarov, Andreï;Berghmans, Francis 
;Deparis, Olivier;Fernandez Fernandez, Alberto ;Defosse, Yves;Mégret, Patrice ;Decréton, Marc;Blondel, Michel
Référence IEEE photonics technology letters, 11, 9, page (1159-1161)
Publication Publié, 1999-09
;Deparis, Olivier;Fernandez Fernandez, Alberto ;Defosse, Yves;Mégret, Patrice ;Decréton, Marc;Blondel, Michel Référence IEEE photonics technology letters, 11, 9, page (1159-1161)
Publication Publié, 1999-09
Article révisé par les pairs
| Résumé : | Fiber Bragg gratings (FBG's) written in a 10 mol.% Ge-doped core silica fiber using a phase mask were exposed to γ-radiation. The transmission and reflection spectra were recorded during irradiation up to doses in excess of 1 MGy. There was 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. |
