The Cr3+:Yb3+:Ln3+:YSGG crystals as solid- state laser materials

Abstract

The concentration of Ln3+ ions in gallium garnets doped by Cr3+ ions must be high enough to efficiently transfer energy Cr3+ →Ln3+. Low concentration of Ln3+ ions in some cases presents interest because it allows to avoid the concentrational quenching of some Ln3+ ion levels and to decrease the lasing threshold of three-level lasers.