Abstract

This paper discuss a series of Ho3+/Yb3+ codoped silicate glasses prepared by the melting method. 2 μm emissions of the samples are observed under the pump of 980 nm LD. The Judd-Ofelt parameters (Ωλ) and radiative properties are calculated and analyzed; the spontaneous transition probability can reach 78.71  s1. From the fluorescence spectra, the peak absorption and emission cross section of Ho3+ are 2.36×1021 and 5.05×1021  cm2, respectively. In addition, we analyze the energy transfer process of Yb3+:  F5/22 level to Ho3+:  I65 level. Considering the luminance properties and good thermal property, we indicate that Ho3+/Yb3+ codoped silicate glass is a potential laser glass for the efficient 2 μm laser.

© 2016 Optical Society of America

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