Patent ID: 7391801
Filing Date: 2008-06-24
Classification: H01S

Abstract:
1. An electrically pumped semiconductor laser, comprising: a silicon substrate; a strip waveguide structure disposed on the substrate; an optical coupling layer disposed on the substrate and the strip waveguide structure; a resonator layer disposed on the optical coupling layer and including a lateral superlattice having a plurality of substantially cylindrical pores extending downwardly into the resonator layer; an insulating cap layer disposed on the resonator layer and being operative to seal the superlattice; a first plug-filled via formed on a central region of the cap layer and extending downwardly to permit a bottom portion of the first plug to communicate with a first impurity-doped unguided wing region of the superlattice; and a second plug filled via formed on an edge region of the cap layer and extending downwardly to permit a bottom portion of the second plug to communicate with a second impurity-doped unguided wing region of the superlattice, wherein electrical current conducted between the first and second plug-filled vias is operative to excite predetermined elements of the superlattice defined on the resonator layer for generating light in the resonator layer which is redirected to the waveguide structure, via the optical coupling layer.