We present the spectroscopic characterization and the laser measurements obtained with a 10 at.% Yb:Y3Sc1.5Al3.5O12 (=YSAG) ceramic sample. Longitudinally pumped in quasi-Continuous Wave (QCW) and in Continuous Wave (CW) at 936 nm, the ceramic has shown good laser performance. In the former pumping regime it delivers 6.7 W with a slope efficiency of ηs=67.8% and a laser threshold below 0.5 W. In the latter, the maximum output power was 5 W with ηs=52.7%.  Finally, the tunable laser action has been obtained in the range between 991.5 nm and 1073 nm, i.e. 81.5 nm, by using a ZnSe prism. 

Graphical Abstract

Spectroscopic characterization and laser test of a 10at.% Yb:Y3Sc1.5Al3.5O12 ceramic sample