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Article Dans Une Revue AIP Conference Proceedings Année : 2014

A physical model of the photo- and radiation-induced degradation of ytterbium-doped silica optical fibres

Résumé

We propose a model to describe the photo-or/and the radiation-induced darkening of ytterbium-doped silica optical fibers. This model accounts for the well-established experimental features of photo-darkening. Degradation behaviors predicted for fibers pumped in harsh environments are also fully confirmed by experimental data reported in the work by Duchez et al. (this proceeding), which gives a detailed characterization of the interplay between the effects of the pump and those of a superimposed ionizing irradiation (actual operation conditions in space-based applications for instance). In particular, dependences of the darkening build-up on the pump power, the total ionizing dose and the dose rate are all correctly reproduced. The presented model is a 'sufficient' one, including the minimal physical ingredients required to reproduce experimental features. Refinements could be proposed to improve, e.g., quantitative kinetics.
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hal-01223816 , version 1 (03-11-2015)

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Franck Mady, Jean-Bernard Duchez, Yasmine Mebrouk, Mourad Benabdesselam. A physical model of the photo- and radiation-induced degradation of ytterbium-doped silica optical fibres. AIP Conference Proceedings, 2014, ⟨10.1063/1.4900462⟩. ⟨hal-01223816⟩
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