Paramagnetic germanium-related centers induced by energetic radiation in optical fibers and preforms - Université Jean-Monnet-Saint-Étienne Access content directly
Journal Articles Journal of Non-Crystalline Solids Year : 2009

Paramagnetic germanium-related centers induced by energetic radiation in optical fibers and preforms

Abstract

We investigated the creation processes of Ge-related paramagnetic point defects in silica fibers and preforms, doped with different amounts of germanium, and X-ray irradiated at several radiation doses. Different paramagnetic defect species, like GeE0, Ge(1) and Ge(2), were revealed by electron paramagnetic resonance measurements and their concentration was studied as a function of the irradiation dose. The comparison with the optical absorption spectra points out the main role of Ge(1) on the optical transmission loss of fibers in the UV region.

Dates and versions

ujm-00394025 , version 1 (10-06-2009)

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Cite

G. Origlio, Sébastien Girard, Marco Cannas, Y. Ouerdane, R. Boscaino, et al.. Paramagnetic germanium-related centers induced by energetic radiation in optical fibers and preforms. Journal of Non-Crystalline Solids, 2009, 355, pp.1054-1056. ⟨10.1016/j.jnoncrysol.2008.11.033⟩. ⟨ujm-00394025⟩
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