Stabilization of Fiber Bragg Gratings against Gamma Radiation

Andrei Goussarov, S. Vasiliev, O. Medvedkov, I. McKenzie, F. Berghmans, Marco Van Uffelen

    Research outputpeer-review


    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 99mol.%. 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.
    Original languageEnglish
    Pages (from-to)2205-2212
    JournalIEEE transactions on nuclear Science
    Issue number4
    StatePublished - Aug 2008

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