Abstract
Tm3+/Yb3+ codoped tellurite glass has been prepared. Density, refractive index, optical absorption, Judd-Ofelt parameters and spontaneous transition probabilities of Tm3+ have been measured and calculated, respectively. Intense blue three-photon upconversion fluorescence and S-band (1470 nm) fluorescence were investigated under the excitation of a 980 nm diode laser at room temperature. Judd-Ofelt parameters, strong blue three-photon upcoversion emission of Tm3+ in glass indicate that Tm3+/Yb3+ codoped tellurite glass is a promising blue color upconversion optical and laser material. In addition, experiment results showed the 980 nm laser was more efficient than 808 nm laser when pumping Tm3+/Yb3+ codoped tellurite glass, Tm3+/Yb3+ codoped tellurite glass also could be a promising material for S-band amplification.
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Huang, Q.J., Wang, Q.P., Chang, J. et al. Optical parameters and upconversion fluorescence in Tm3+/Yb3+ codoped tellurite glass. Laser Phys. 20, 865–870 (2010). https://doi.org/10.1134/S1054660X10070121
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DOI: https://doi.org/10.1134/S1054660X10070121