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1 April 2020 Novel ER3+ doped tellurite glass-ceramics
M. Guidat, A. Veber, L. Petit
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Proceedings Volume 11357, Fiber Lasers and Glass Photonics: Materials through Applications II; 1135708 (2020) https://doi.org/10.1117/12.2555326
Event: SPIE Photonics Europe, 2020, Online Only
Abstract
Er3+ doped tellurite-based glasses were prepared using standard melting process and their physical, optical, thermal, optical and luminescence properties were measured and compared. We found that the addition of Na2O in the TeO2-ZnO system leads to higher emission at 1.5μm as compared to the addition of TeO2, Bi2O3, BaO, Nb2O5. We found that Bi2O3 should be used in order to increase the intensity of the upconversion under 976 nm excitation. The glasses were heat treated in order to grow crystals in these glasses. Surface crystallization occurred upon heat treatment with the precipitation of multiple crystals, the composition of which depends on the glass composition. The heat treatment was found to have no impact on the intensity of the emission at 1.5 μm. However, it increases the intensity of the red upconversion, especially for Bi2O3 containing glass.
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M. Guidat, A. Veber, and L. Petit "Novel ER3+ doped tellurite glass-ceramics", Proc. SPIE 11357, Fiber Lasers and Glass Photonics: Materials through Applications II, 1135708 (1 April 2020); https://doi.org/10.1117/12.2555326
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KEYWORDS
Glasses
Erbium
Crystals
Heat treatments
Upconversion
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