Abstract

2.0 μm emission property of a new germanate–tellurite (GT) glass with Ho3+/Yb3+ codoping is synthesized and analyzed. Efficient 2.0 μm emission of Ho3+ ions sensitized by Yb3+ ions from the host glass was observed under 980 nm pumping. Based on the measured absorption spectra, the Judd–Ofelt parameters were calculated and discussed. The maximum emission cross section of Ho3+ ions transition is 4.36×1021cm2 around 2.0 μm. The energy transfer efficiency is calculated and fitted the decay signals. The good spectroscopic properties suggest that Ho3+/Yb3+-codoped GT glass may become an attractive host for developing solid state lasers operating in the mid-infrared.

© 2014 Optical Society of America

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