Patent ID: 7450621

Claim:
A laser device, comprising: a semiconductor substrate having an upper surface and a lower surface, the upper surface having formed therein an upper reflective surface, a diffractive lens, and an angled reflective surface, the lower surface having formed therein a lower reflective surface; an edge-emitting laser formed in the semiconductor substrate for emitting a diverging light beam into the substrate along an emission axis, said emission axis being substantially parallel to the upper reflective surface, substantially parallel to the lower reflective surface, and intersecting the angled reflective surface at a non-zero angle; and wherein the laser, angled reflective surface, upper reflective surface, lower reflective surface and diffractive lens are oriented in relation to one another for a first portion of the diverging light beam to impinge directly upon the upper reflective surface and a second portion of the diverging light beam to impinge directly upon the angled reflective surface, and wherein the angled reflective surface reflects the impinging first and second portions onto the lower reflective surface, and the lower reflective surface reflects the first and second portions through the diffractive lens.