Journal
JOURNAL OF LUMINESCENCE
Volume 153, Issue -, Pages 29-33Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2014.02.031
Keywords
Yb3+; Tellurite glass; Spectroscopic properties; Thermal properties; Gain coefficient
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Funding
- National Nature Science Foundation of China [61177086, 61307046, 61308086]
- West Light Foundation of the Chinese Academy of Sciences [Y129261213]
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Series of (94%-x) TeO2-6% Bi2O3-x Nb2O5 (x=10, 12.5, 15, 17.5 and 20 mol%) glasses doped with Yb2O3 were prepared by the melt-quenching method. Their emission cross-sections, fluorescence lifetimes, gain and thermal properties were investigated by the absorption spectra, the fluorescence decay curves and differential scanning calorimetry (DSC), respectively. The results show that the glass with 15 mol% Nb2O5 possesses the largest emission cross-section of 1.36 pm(2), the longest fluorescence lifetime of 0.96 ms and the highest gain coefficient of 1.31 ms pm(2); also the glass has excellent thermal properties, for which the value of Delta T(=T-x-T-g) reaches up to 144 degrees C. These indicate that this tellurite glass may have potential application as Yb2O3 doped gain medium for solid lasers. (C) 2014 Elsevier B.V. All rights reserved.
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