1.55 /spl mu/m, double-intracavity contacted, InP-lattice-matched VCSELs

We demonstrate a 1.55 /spl mu/m, double-intracavity contacted VCSEL operating at room temperature under CW. The whole structure is completely lattice-matched to InP and grown at single step. A VCSEL with a 14 /spl mu/m diameter current aperture shows the threshold current of 2.0 mA and the maximum output power of 480 /spl mu/W at 25/spl deg/C, and it operates up to 60/spl deg/C. The threshold voltage and differential resistance are 1.3 V and 40 /spl Omega/, respectively, for a 10 /spl mu/m aperture VCSEL.