Patent ID: 7881356
Filing Date: 2011-02-01
Classification: H01S

Abstract:
1. A semiconductor laser apparatus comprising: a first semiconductor laser device having a first semiconductor layer emitting a light beam of a first wavelength on a first substrate; and a second semiconductor laser device having a second semiconductor layer emitting a light beam of a second wavelength on a second substrate, wherein said first and second wavelengths are different from each other, and said second substrate is composed of a material different from that of said first substrate, said first semiconductor layer has a multilayer structure including a first conductivity type semiconductor layer, an active layer and a second conductivity type semiconductor layer formed in this order on said first substrate, said second semiconductor layer has a multilayer structure including a first conductivity type semiconductor layer, an active layer and a second conductivity type semiconductor layer formed in this order on said second substrate, said first semiconductor laser device has a first electrode on a first surface of said second conductivity type semiconductor layer of said first semiconductor layer, said second semiconductor laser device has a first electrode on a first surface of said second conductivity type semiconductor layer of said second semiconductor layer, said first electrode of said second semiconductor laser device is bonded onto said first surface of said second conductivity type semiconductor layer of said first semiconductor layer with an insulating film sandwiched therebetween, and said first electrode of said first semiconductor laser device and said first electrode of said second semiconductor laser device are electrically isolated from each other.