Characteristics of very-large-aperture, oxide-confined vertical-cavity surface-emitting lasers

We report the results of our very large aperture, oxide-confined vertical-cavity surface-emitting lasers (OC-VCSELs). The apertures of the laser-emitting windows are 300 to 500 /spl mu/M in diameter. P-type metal grid lines were also formed within the aperture for better current spreading. A maximum cw optical power of 42.7 mW was measured for a 500 /spl mu/m aperture device.