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

D. A. Dvoretsky; I. A. Bufetov; V. V. Vel'miskin; A. S. Zlenko; V. F. Khopin; S. L. Semenov; A. N. Guryanov; L. K. Denisov; E. M. Dianov

arXiv · 1201.5704

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

D. A. Dvoretsky·I. A. Bufetov·V. V. Vel'miskin·A. S. Zlenko·V. F. Khopin·S. L. Semenov·A. N. Guryanov·L. K. Denisov·E. M. Dianov

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Abstract

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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D. A. Dvoretsky, I. A. Bufetov, V. V. Vel'miskin, A. S. Zlenko, V. F. Khopin, S. L. Semenov, A. N. Guryanov, L. K. Denisov, E. M. Dianov. 2012-01-27. Thermal behavior of NIR active centers in Bi-doped optical fibers. https://arxiv.org/abs/1201.5704

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