Patent ID: 7821880
Filing Date: 2010-10-26
Classification: G11B

Abstract:
1. A semiconductor laser device structure comprising: a semiconductor laser device; a light source supporting substrate mounting the semiconductor laser device; and an optical waveguide supporting substrate, bonded to the light source supporting substrate, having an optical waveguide for introducing therein light from the semiconductor laser device, wherein the light source supporting substrate has a first alignment mark member embedded therewithin, wherein the first alignment mark is exposed at a mounting surface of the semiconductor laser device and at a bonding surface of the light source supporting substrate with the optical waveguide supporting substrate, wherein the light source supporting substrate has second and third alignment mark members exposed at the mounting surface, while the second and third alignment mark members are equidistant from a light exit surface of the semiconductor laser device and extend parallel to the light exit surface, and wherein the exposed surface of the first alignment mark member on the mounting surface is positioned between the second and third alignment mark members, while a fourth alignment mark member embedded within the substrate is exposed at a position separated along a resonator length of the semiconductor laser device from the exposed surface.