Highly radiation sensitive type IA FBGs for future dosimetry applications

Abstract

We have studied Co60 gamma-irradiation effect on the characteristics of Type IA fiber Bragg gratings. A record Bragg peak shift of 190 pm was observed for a grating written in Fibercore PS-1250/1500 photosensitive fiber at a radiation dose of 116 kGy. Type IA and Type I gratings show different kinetics under radiation and during post-radiation annealing, which can be used for the design of a grating based dosimetry system.

Additional Information: Copyright 2012 Elsevier B.V., All rights reserved.
Published Date: 2012
Authors: Faustov, A.
Saffari, P.
Koutsides, C.
Gusarov, A.
Wuilpart, M.
Megret, P.
Kalli, K.
Zhang, L.

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