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Spectroscopic investigation of Tm3+:TeO2-K2O-Nb2O5 glasses at different doping levels for 2 μm laser applications

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Spectroscopic measurements performed with Tm3+:TeO2-K2O-Nb2O5 glass at different concentrations show a high emission cross section (6.22×10−21cm2) for the 1860-nm band, making the material potentially important for 2-μm laser development.

© 2011 Optical Society of America

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