Patent ID: 7520679

Claim:
A device comprising: a sub-mount wafer portion having opposing first and second surfaces, the sub-mount wafer portion containing conductive traces exposed at the first surface of the sub-mount wafer portion; a cap wafer portion attached to the sub-mount wafer portion to form a package, the cap wafer portion having opposing first and second surfaces, the first surface of the cap wafer portion being bonded to the first surface of the sub-mount wafer portion; a die mounted on the first surface of the sub-mount wafer portion and containing an edge-emitting laser that is electrically coupled to the conductive traces, the cap wafer portion having a cavity formed therein at the first surface of the cap wafer portion, the die disposed in the cavity; and a reflector defined by reflective surfaces of walls of the cavity, the reflector positioned to reflect an optical signal from the edge-emitting laser in a reflected direction toward the first surface of the sub-mount wafer portion and through the sub-mount wafer portion, wherein the optical signal emerges in the reflected direction from the second surface of the sub-mount wafer portion.