Reduction of the radiation-induced absorption in hydrogenated pure silica core fibres irradiated in situ with y-rays

Benoît Brichard, A. L. Tomashuk, V. A. Bogatyrjov, Alberto Fernandez Fernandez, S. N. Klyamkin, S. Girard, Francis Berghmans

    Research outputpeer-review


    We studied the efficiency of a hydrogen-treatment in different pure silica core fibres irradiated by y-ray in an attempt to decrase the radiation-induced absorption (RIA). It is observed that the effect of hydrogen already reduces the drawing-induced band commonly observed in low-OH fibres. During irradiation we observe a large increase of the radiation-induced OH growth with a corresponding significant reduction of the radiation-induced absorption at 0.63 µm. The presence of hydrogen also reduces the transient radiation-induced absorption at 0.7 µm sometimes observed in low-OH/low-chlorine fibres and believed to pertain to self-trapped holes (STHs).
    Original languageEnglish
    Pages (from-to)466-472
    JournalJournal of Non-Crystalline Solids
    Issue number5-7
    StatePublished - 1 Apr 2007

    Cite this