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NIR luminescence studies on Er3+:Yb3+ co-doped sodium telluroborate glasses for lasers and optical amplifer applications
Er3+:Yb3+ co-doped Sodium telluroborate glasses were prepared with the chemical composition (49.5–x)B2O3+25TeO2+5Li2CO3+10ZnO+10NaF+0.5Er2O3+xYb2O3 (where x= 0.1, 0.5, 1.0 and 2.0 in mol %) following the melt quenching technique. With the addition of Yb3+ ions into Er3+ ions in the prepared glasses,...
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Main Authors: | , , |
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Format: | Conference Proceeding |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Er3+:Yb3+ co-doped Sodium telluroborate glasses were prepared with the chemical composition (49.5–x)B2O3+25TeO2+5Li2CO3+10ZnO+10NaF+0.5Er2O3+xYb2O3 (where x= 0.1, 0.5, 1.0 and 2.0 in mol %) following the melt quenching technique. With the addition of Yb3+ ions into Er3+ ions in the prepared glasses, the absorption cross-section values were found to increase due to the effective energy transfer from 2F5/2 level of Yb3+ ions to the 4I11/2 level of Er3+ ions. The fluorescence around 1550 nm correspond to the 4I13/2→4I15/2 transition was observed under 980 nm pumping. Among the present glasses, integrated intensity was found to be higher for 1.0 mol% Yb3+ ion glass. The parameters such as stimulated emission cross- section, Gain bandwidth and quantum efficiency of the 4I13/2→4I15/2 transition was found to be higher for the NTBE1.0Y glass and the same is suggested for potential NIR lasers and optical amplifier applications. |
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ISSN: | 0094-243X 1551-7616 |
DOI: | 10.1063/1.4947843 |