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1 April 1999 Characterization of cooperative upconversion and energy transfer of Er3+ and Yb3+/Er3+ doped phosphate glasses
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Abstract
Cooperative upconversion and Yb3+-Er3+ energy transfer in newly developed phosphate glasses were studied in this paper. The cooperative upconversion coefficients of 4I13/2 level for different Er3+ concentrations were deduced from the pump intensity- dependent luminescence decay curves. Yb3+-Er3+ energy transfer efficiencies for different Yb3+ concentrations codoped with Er3+ (approximately 2 X 1020 ions/cm3) were estimated from the lifetime measurements of 2F5/2 level of Yb3+ ions. The small cooperative upconversion coefficients and high Yb3+-Er3+ energy transfer efficiencies indicate these newly developed Er3+ and Yb3+/Er3+ doped phosphate glasses are excellent for amplifier and laser applications.
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Bor-Chyuan Hwang, Shibin Jiang, Tao Luo, Lydia Le Neindre, Jason Watson, and Nasser Peyghambarian "Characterization of cooperative upconversion and energy transfer of Er3+ and Yb3+/Er3+ doped phosphate glasses", Proc. SPIE 3622, Rare-Earth-Doped Materials and Devices III, (1 April 1999); https://doi.org/10.1117/12.344510
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