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Gamma radiation induced loss in erbium doped optical fibres

Abstract : Several single-mode silica-based fibres 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 ~2kGy. 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 analyses realized with a confocal micro-spectrometer (514.5 nm excitation, P~2mW).
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Contributor : Youcef Ouerdane Connect in order to contact the contributor
Submitted on : Friday, April 6, 2007 - 7:18:57 PM
Last modification on : Wednesday, August 24, 2022 - 6:29:06 PM

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Blandine Tortech, Marco van Uffelen, Andrei Gusarov, Youcef Ouerdane, Aziz Boukenter, et al.. Gamma radiation induced loss in erbium doped optical fibres. Journal of Non-Crystalline Solids, 2007, 353, pp.477-480. ⟨10.1016/j.jnoncrysol.2006.10.043⟩. ⟨ujm-00140562⟩



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