Gamma radiation induced loss in erbium doped optical fibers

B. Tortech, Marco Van Uffelen, Andrei Goussarov, Y. Ouerdane, A. Boukenter, J.-P. Meunier, Francis Berghmans, H. Thienpont

    Research outputpeer-review


    Several single mode silica-based fibers with different levels of erbium concentrations have been tested under 60Co gamma radiation. Irradiation has been performed at a dose-rate of ~30 Gy/h to a total dose of ~2 kGy. Transmission spectra were measured in situ in a spectral range from 1250 to 1630 nm. The measurements show no detectable change in the Er-ions luminescence and absorption spectrum profiles, while a significant (~dB/m/kGy at 1530 nm) increase in transmission losses is attributed to the silica host matrix modifications. This conclusion is drawn based on the post-irradiation photo-luminescence analyzes realized with a confocal micro-spectrometer (514.5 nm excitation, P ~2mW).
    Original languageEnglish
    Pages (from-to)477-480
    JournalJournal of Non-Crystalline Solids
    Issue number5-7
    StatePublished - 1 Apr 2007

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