Comparison of YAG:Er and YAlO3:Er laser crystals emitting near 2.9 μm

Abstract
Four different erbium laser crystals, two YAG:Er (40 at. %) and two YAlO3:Er (30 at. % and 50 at. %), have been compared with respect to their laser thresholds and slope efficiencies. The performance of these laser crystals was further compared with a YSGG:Cr:Er (Y3Sc2Ga3O12) (3.6 at. % Cr3+ and 4 at. % Er3+). The experimental results are explained with up‐conversion processes in the crystals.

This publication has 9 references indexed in Scilit: