光电子快报(英文版), 2016, 12 (5): 340, Published Online: Oct. 12, 2017
Enhancement of 2.0 μm fluorescence emission in new Ho3+/Tm3+/Yb3+tri-doped tellurite glasses
Abstract
For enhancing the 2.0 μm band fluorescence of Ho3+, a certain amount of WO3oxide was introduced into Ho3+/Tm3+/Yb3+tri-doped tellurite glass prepared using melt-quenching technique. The prepared tri-doped tellurite glass was characterized by the absorption spectra, fluorescence emission and Raman scattering spectra, together with the stimulated absorption, emission cross-sections and gain coefficient. The research results show that the introduction of WO3oxide can further improve the 2.0 μm band fluorescence emission through the enhanced phonon-assisted energy transfers between Ho3+/Tm3+/Yb3+ions under the excitation of 980 nm laser diode (LD). Meanwhile, the maximum gain coefficient of Ho3+at 2.0 μm band reaches about 2.36 cm-1. An intense 2.0 μm fluorescence emission can be realized .
CHENG Pan, YANG Feng-jing, ZHOU Zi-zhong, HUANG Bo, WU Li-bo, ZHOU Ya-xun. Enhancement of 2.0 μm fluorescence emission in new Ho3+/Tm3+/Yb3+tri-doped tellurite glasses[J]. 光电子快报(英文版), 2016, 12(5): 340.