Thermal behavior of NIR active centers in Bi-doped optical fibers

Details Thermal behavior of NIR active centers in Bi-doped optical fibers Thermal behavior of NIR active centers in Bi-doped optical fibers

2012-01-27

arxiv.org/abs/1201.5704v1

Physics

Optics

22 pages, 8 figures

Scientific paper

The temperature dependences of optical loss and luminescence spectra have been measured in visible and NIR spectral range for Bi-doped silica and Bi-doped germanosilicate fibers for the first time. The temperature dependence of luminescence lifetime for Si-associated active bismuth centers in germanosilicate fiber was measured. It has been revealed, that distribution of Bi3+ ions across the fiber preform is essentially different as compared to that of NIR active bismuth centers. Data received indicates that NIR-active centers are associated with the low oxidation state of bismuth ion and/or oxygen deficient center of the glass structure.

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