High total dose radiation effects on temperature sensing fiber Bragg gratings

A. I. Gusarov, F. Berghmans, O. Deparis, A. Fernandez Fernandez, Yves Defosse, P. Mégret, M. Décreton, M. Blondel

    Research outputpeer-review

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)1159-1161
    Number of pages3
    JournalIEEE Photonics Technology Letters
    Volume11
    Issue number9
    DOIs
    StatePublished - Sep 1999

    Funding

    FundersFunder number
    Not addedIAP IV/07

      ASJC Scopus subject areas

      • Electronic, Optical and Magnetic Materials
      • Atomic and Molecular Physics, and Optics
      • Electrical and Electronic Engineering

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