3-μ InGaAsSb/InPSb diode lasers grown by organometallic vapor-phase epitaxy

We have observed laser action in InO7GaO3AsO72SbO28 IInPO.7SbO.3 double heterojunction, diode lasers at ? = 3.06 .tm. The maximum operating temperature was 35 K. The threshold current densities were in the range of 200 - 330 A /cm These devices were grown by organometallic vapor-phase epitaxy.