Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers
Tm3+‐singly‐doped and Tm3+‐/Ho3+‐codoped TeO2‐Bi2O3‐ZnO‐Li2O‐Nb2O5 (TBZLN) tellurite glasses were successfully prepared by the melt‐quenching technique. Emission characteristics and energy transfer mechanisms were studied upon 785‐nm laser diode excitation. A significant enhancement of emission inte...
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Published in | International journal of applied glass science Vol. 8; no. 2; pp. 216 - 225 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Westerville
Wiley Subscription Services, Inc
01.06.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Tm3+‐singly‐doped and Tm3+‐/Ho3+‐codoped TeO2‐Bi2O3‐ZnO‐Li2O‐Nb2O5 (TBZLN) tellurite glasses were successfully prepared by the melt‐quenching technique. Emission characteristics and energy transfer mechanisms were studied upon 785‐nm laser diode excitation. A significant enhancement of emission intensity at 1.81 μm with increasing concentration of Tm3+ ions has been observed while increase in the emission intensity at 2.0 μm with increasing concentration of Ho3+ has been observed up to the equal concentration of Tm3+ (0.5 mol%) in TBZLN glasses. The stimulated emission cross section of Tm3+: 3F4→3H6 (5.20×10−21 cm2) and Ho3+: 5I7→5I8 (4.00×10−21 cm2) in 1.0 mol% Tm3+‐doped and 0.5 mol% Tm3+/1.0 mol% Ho3+‐codoped TBZLN glasses are higher compared with the reported and are found to be excellent candidates for solid‐state lasers operating at ~1.8 and 2.0 μm, respectively. The extension of near‐infrared (NIR) emission of Tm3+ with Ho3+ ions provides the possibility of using these materials for broadband NIR amplifiers. |
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ISSN: | 2041-1286 2041-1294 |
DOI: | 10.1111/ijag.12213 |