RARE EARTH DOPED Lu2O3 POLYCRYSTALLINE CERAMIC LASER GAIN MEDIUM

摘要

A method for making a rare earth doped polycrystalline ceramic laser gain medium by hot pressing a rare earth doped polycrystalline powder where the doping concentration is greater than 2% and up to 10% and where the grain size of the final ceramic is greater than 2 μm. The polycrystalline powder can be Lu₂O₃, Y₂O₃, or Sc₂O₃, and the rare earth dopant can be Yb³⁺, Er³⁺, Tm³⁺, or Ho³⁺. Also disclosed is the related rare earth doped polycrystalline ceramic laser gain medium prepared by this method.