2012/01/27 by D.A. Dvoretsky, D. A. Dvoretsky, Dvoretsky, D. A. +19
Engineering · Materials Science · Physics and Astronomy · #Advanced Fiber Optic Sensors #FOS: Physical sciences #Glass properties and applications #Materials Science (cond-mat.mtrl-sci) #Optics (physics.optics) #cond-mat.mtrl-sci #physics.optics
paper · pdf · doi:10.48550/arxiv.1201.5704
22 pages, 8 figures
arxiv created 2012/01/27 · openalex publication_date 2012/01/27 · arxiv updated 2012/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.