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

Abstract : 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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Contributor : Youcef Ouerdane <>
Submitted on : Wednesday, March 18, 2009 - 6:56:46 PM
Last modification on : Wednesday, July 25, 2018 - 2:05:31 PM

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  • HAL Id : ujm-00369252, version 1

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

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