Patent ID: 6760355
Filing Date: 2004-07-06
Classification: B82Y,H01S

Abstract:
A semiconductor laser device, comprising:an optical waveguide; an optically active region of the optical waveguide in which light is generated in a predetermined optical field having a nonuniform intensity which varies as a function of position within the active region, at least one first subregion of the active region having generated therein a first light intensity, at least a second subregion of the active region having generated therein a second light intensity less than the first light intensity; an optically passive region of the optical waveguide formed by quantum well intermixing; and means for providing gain profiling, said means including a shaped carrier injection contact formed to be coupled to the active region and having a surface contact area, more of the surface contact area of the contact being formed adjacent the first subregion of the active region and less of the surface contact area of the contact being formed adjacent the second subregion of the active region.