Patent ID: 9088124
Filing Date: 2015-07-21
Classification: G02B,G11B,H01L,H01S

Abstract:
1. A method comprising: forming a laser substrate; depositing a junction layer on the laser substrate, the junction layer forming a quantum well of a laser diode; forming one or more channels through the junction layer along a laser output direction, a bottom of the one or more channels extending to the laser substrate; depositing an insulating layer on the junction layer; removing a portion of the insulating layer in one or more trench regions at the bottom of the one or more channels; forming a cathode metal layer over the insulating layer, the cathode metal layer coupled to the laser substrate at the one or more trench regions; and forming one or more cathode electrical junctions coupled to the cathode metal layer, the one or more cathode electrical junctions exposed at a junction surface of the laser diode.