1. Stabilization of Fiber Bragg Gratings Against Gamma Radiation.
- Author
-
Gusarov, A., Vasillev, S., Medvedkov, O., Mckenzie, L., and Berghmans, F.
- Subjects
RADIATION ,GAMMA rays ,SPECTRUM analysis ,BRAGG gratings ,RADIATION tolerance ,OPTICAL fibers - 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 GeO
2 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 ha 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. [ABSTRACT FROM AUTHOR]- Published
- 2008
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