Study of the thermo-optical constants of Yb doped Y2O3, Lu2O3 and Sc2O3 ceramic materials

Thermally induced depolarization and thermal lens of three Konoshima Chemical Co. laser-ceramics samples Yb3+:Lu2O3(C-Yb approximate to 1.8 at.%), Yb3+:Y2O3(C-Yb approximate to 1.8 at.%), and Yb3+:Sc2O3 (C-Yb approximate to 2.5 at.%) were measured in experiment at different pump power. The results allowed us to estimate the thermal conductivity of the investigated ceramic samples and compare their thermo-optical properties. The thermo-optical constants P and Q and its sign measured for these materials at the first time. (C)2013 Optical Society of America