Borogermanate glasses with a 25% molar content of lanthanoid oxides were synthesized and investigated. It was found that their glass transition temperature t g is about 770°C, approximately 200°C higher than the t g of laser phosphate glass. Relatively weak clustering of erbium, whose optical centers are characterized by high homogeneity and a large (86–90 nm)effective half-width of the 4 I 13/2 → 4 I 15-2 luminescence band of Er3+, is realized.
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Translated from Steklo i Keramika, No. 10, pp. 20–23, October, 2008.
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Sigaev, V.N., Sarkisov, P.D., Golubev, N.V. et al. Glass formation, crystallization, and spectral-luminescence properties of glasses of the Er2O3-Yb2O3-B2O3-GeO2 System. Glass Ceram 65, 340–343 (2008). https://doi.org/10.1007/s10717-009-9087-9
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DOI: https://doi.org/10.1007/s10717-009-9087-9