Patent ID: 8917752

Claim:
A vertical cavity laser comprising: a cavity comprising: a reflector formed on a substrate, the reflector comprising: an active material configured to generate light in response to an applied current; and a reflecting region; a reflectivity modulated grating minor comprising: a p-doped semiconductor layer; an n-doped semiconductor layer; and an electrooptic material layer arranged between the p-doped semiconductor layer and the n-doped semiconductor layer, wherein the p-doped semiconductor layer, the n-doped semiconductor layer, and the electrooptic material layer form a 1D or 2D grating structure having a plurality of perforations formed therein so that a refractive index changes periodically or nonperiodically a direction normal to said oscillation axis; and a gap formed between the first reflector and the reflectivity modulated grating mirror, wherein the cavity is adapted to support light oscillation between the reflecting region of the first reflector and the reflectivity modulated grating mirror along an oscillation axis normal to the substrate; and electric contacts in electrical connection to the p-doped semiconductor layer and to the n-doped semiconductor layer configured to apply electrical bias to the electrooptic material layer wherein the p-doped semiconductor layer and the n-doped semiconductor layer act as electric contacts for the electrooptic layer to change a refractive index of the electrooptic material in response to the applied electrical bias.