Optical properties of bismuth-doped silica fibres in the temperature range 300 — 1500 K
| Autor: | Alexander S. Zlenko, Vladimir F. Khopin, D. A. Dvoretskii, Igor' A Bufetov, Aleksei N Gur'yanov, Lev K. Denisov, Sergey L. Semjonov, V. V. Velmiskin, Evgenii M Dianov |
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| Rok vydání: | 2012 |
| Předmět: |
inorganic chemicals
Optical fiber Materials science Silicon Doping Analytical chemistry chemistry.chemical_element Statistical and Nonlinear Physics Atmospheric temperature range bacterial infections and mycoses equipment and supplies digestive system digestive system diseases Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion law.invention Bismuth chemistry law Electrical and Electronic Engineering Luminescence Absorption (electromagnetic radiation) |
| Zdroj: | Quantum Electronics. 42:762-769 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | The visible and near-IR absorption and luminescence bands of bismuth-doped silica and germanosilicate fibres have been measured for the first time as a function of temperature. The temperature-dependent IR luminescence lifetime of a bismuth-related active centre associated with silicon in the germanosilicate fibre has been determined. The Bi3+ profile across the silica fibre preform is shown to differ markedly from the distribution of IR-emitting bismuth centres associated with silicon. The present results strongly suggest that the IR-emitting bismuth centre comprises a lowvalence bismuth ion and an oxygen-deficient glass network defect. |
| Databáze: | OpenAIRE |
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