Laser operation at 2.8 µm in BaY2F8 with erbium concentrations of 7.5% and 20% is investigated under laser-diode pumping at 967 nm. Output powers as high as 250 mW and slope efficiencies as high as 24% are obtained. Results are comparable with those of Er3+:LiYF4 under the same pump conditions. Slope efficiencies above 30% are predicted for optimized erbium concentrations.
© 1996 Optical Society of America
M. Pollnau, W. Lüthy, H. P. Weber, T. Jensen, G. Huber, A. Cassanho, H. P. Jenssen, and R. A. McFarlane, "Investigation of diode-pumped 2.8-µm laser performance in Er:BaY2F8," Opt. Lett. 21, 48-50 (1996)