Spectral Properties of Doped Glasses of the 35Bi2O3 • 40PbO • 25Ga2O3 Composition Synthesized in a Quartz Crucible

A glasslike material of the 35Bi(2)O(3) center dot 40PbO center dot 25Ga(2)O(3) composition is investigated. Quartz glass is used in the synthesis as the crucible material. It is shown that, compared to the platinum crucible, the high-energy transmission cutoff shifts from 650 to 500 nm, which has enabled us to study the upconversion luminescence spectra of the glass of the 35Bi(2)O(3) center dot 40PbO center dot 25Ga(2)O(3) composition doped by Er3+ ions in the range 500-700 nm. The upconversion luminescence spectra for the glass doped by Er3+ and codoped by Nd3+ and Yb3+ ions are obtained.