p.305
p.309
p.315
p.323
p.329
p.333
p.339
p.345
p.351
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:
Pages:
329-332
Citation:
Online since:
March 2005
Authors:
Keywords:
Price:
Сopyright:
© 2005 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: