Abstract
A tetragonal “mixed” Tm:Ca(Gd,Lu)AlO4 crystal is grown by the Czochralski method. The Lu3+-doping broadens the Tm3+ gain spectra. A diode-pumped Tm:Ca(Gd,Lu)AlO4 laser generated 1.82 W at 1945 nm with a slope efficiency of 29%.
© 2018 The Author(s)
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