The study of laser characteristics of Nd3+:KGd(WO4)2 crystal

Abstract This paper presents laser characteristics of neodymium-doped potassium gadolinium tungstate (KGW) crystals grown in our institute. The maximum laser output was 358.4 mJ a pulse at wavelength 1.067 μm when a Nd3+:KGW rod with dimensions of ∅3.4 mm ×24 mm was pumped by a single xenon flashlamp. The overall and slope efficiencies are 1.7% and 3.3%, respectively. A laser output of 204 mW with an optical to optical efficiency of 60% has been obtained when the KGW:Nd3+ crystal with dimensions of 5 mm ×5 mm ×5 mm was pumped by a sapphire laser.