T. Blanchet, S. Nehr, R. Desmarchelier, A. Morana, A. Gusarov, A. Boukenter, Y. Ouerdane, E. Marin, S. Girard, G. Laffont
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High Temperature and γ-ray Radiation Effects on Regenerated Fiber Bragg Grating
We investigate the combined effects of γ-rays (300 kGy) and high temperatures (250°C) on the performances of regenerated Fiber Bragg Gratings. These gratings were inscribed with a KrF laser and a phase mask in Ge-doped fiber and regenerated at ~750°C. Such irradiation conditions induce a shift of their Bragg wavelengths of less than 20 pm (equivalent to a temperature error of 2°C).
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