Abstract
A new type of fluoride glasses with high erbium-doping concentration (up to 6 mol. % ) is investigated. The intensive 2.7 μm fluorescence is demonstrated with minimized concentration quenching. The intensity parameters and radiative properties are determined from the absorption spectrum based on the Judd–Ofelt theory. The prepared -doped ZBYA glass possesses high predicted spontaneous-transition probability () and large calculated emission cross section (). All these results indicate that this -doped -based fluoride glass has potential applications in 2.7 μm laser materials.
© 2013 Optical Society of America
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