Paper Title:
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.

  Info
Periodical
Materials Science Forum (Volumes 480-481)
Edited by
A. Méndez-Vilas
Pages
329-332
DOI
10.4028/www.scientific.net/MSF.480-481.329
Citation
S. Girard, A. Boukenter, Y. Ouerdane, J.-P. Meunier, "Radiation-Induced-Defects Localization in Single-Mode Optical Fibers", Materials Science Forum, Vols. 480-481, pp. 329-332, 2005
Online since
March 2005
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