Abstract
2.0 μm emission property of a new germanate–tellurite (GT) glass with codoping is synthesized and analyzed. Efficient 2.0 μm emission of ions sensitized by 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 ions transition is around 2.0 μm. The energy transfer efficiency is calculated and fitted the decay signals. The good spectroscopic properties suggest that -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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