Lead-salt vertical-cavity surface-emitting lasers operating at /spl lambda/=4.5-4.6 /spl mu/m with optical pumping

摘要

With optical pumping, a lead salt vertical-cavity surface-emitting laser has been operated at wavelengths in the 4.50-4.60 mm range at temperatures up to T=289 K. For a 60 /spl mu/m/spl times/90 /spl mu/m pump spot, a device with a PbSe active region and Pb/sub 1-x/Sr/sub x/Se/BaF/sub 2/ quarter-wave mirror stacks was realised which had an unsaturated peak output power of 38 mW at 249 K.