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Journal Articles Materials Science Forum Year : 2005

Radiation-Induced-Defects Localization in Single-Mode Optical Fibers


We studied the defects at the origins of the permanent radiation-induced attenuation in four g-rays irradiated single-mode germanosilicate optical fibers (~1 MeV; 1.2 kGy; 0.3 Gy/s) in the spectral range 400 - 1700 nm. We determined the wavelength dependence of the following cladding codopant influences: germanium (0.3 %), phosphorus (0.3 %), fluorine (0.3 %) on the germanosilicate (13 %) fiber radiation responses. We identified some of the different color centers produced by g-rays and we evaluated their localization in the fiber cross-section through the determination of the radial distribution of the radiation-induced absorption at 633 nm. We also evidenced the strong interactions between these three codopants. In particular, our results showed that the properties of the phosphorus-related color centers, which mainly determine the fiber infrared radiation sensitivity, are strongly influenced by the germanium- and fluorine-codoping.
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Dates and versions

ujm-00369252 , version 1 (18-03-2009)


  • HAL Id : ujm-00369252 , version 1


Sébastien Girard, A. Boukenter, Y. Ouerdane, J.-P. Meunier. Radiation-Induced-Defects Localization in Single-Mode Optical Fibers. Materials Science Forum, 2005, 480-481, pp.329-332. ⟨ujm-00369252⟩
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