Patent ID: 7916766

Claim:
A semiconductor laser device comprising: a first substrate; a first semiconductor laser element that is formed on a surface of the first substrate and includes a first active layer; a first insulating film formed on a surface of the first semiconductor laser element on a side including the first active layer; a second semiconductor laser element bonded to the first semiconductor laser element with the first insulating film interposed therebetween; a first electrode connected to the first semiconductor laser element; and a second electrode that is arranged on the surface of the first semiconductor laser element with the first insulating film interposed therebetween and is connected to the second semiconductor laser element, wherein the first semiconductor laser element has an optical waveguide formed in a region where the second semiconductor laser element is not bonded while the first electrode is arranged on the region, and the second electrode is formed to extend from between the second semiconductor laser element and first insulating film toward the region.