Abstract

The room-temperature laser-oscillation properties of lead thiogallate crystals doped with dysprosium ions PbGa2S4:Dy3+ without additional codoping and codoped with potassium ion for excessive charge compensation were investigated. A slope efficiency of 1% was obtained for the codoped crystal. YAP:Er 1.66μm laser resonant pumping of PbGa2S4:Dy3+ laser was compared with YAG:Nd 1.32μm nonresonant pumping. The maximum energy obtained was 57μJ with the negligible influence of the atmosphere.

© 2009 Optical Society of America

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