An organic vertical cavity laser array device for producing multimode laser output
includes a substrate; a bottom dielectric stack reflective to light over a predetermined
range of wavelengths, being disposed over the substrate; and an active region for
producing laser light. A top dielectric stack is spaced from the bottom dielectric
stack and reflective to light over a predetermined range of wavelengths. The active
region includes one or more periodic gain region(s) and spacer layers disposed
on either side of the periodic gain region(s). The periodic gain region(s) is aligned
with the antinodes of the device's standing wave electromagnetic field. The device
includes array of spaced laser pixels which have higher reflectance than the interpixel
regions. The spaced laser pixels have different sizes and the spacings between
pixels having the same or different lengths to cause the output of the vertical
cavity laser array device to produce multimode laser output.