Patent ID: 11888293
Assignee: LUMENTUM OPERATIONS LLC
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 18:
19. An optical source, comprising:
an emitter array that comprises:
a substrate;
an epitaxial structure on the substrate, the epitaxial structure including a top mirror and a bottom mirror;
a plurality of bottom-emitting emitters defined in the epitaxial structure;
a first electrical contact positioned at a top side of the epitaxial structure;
a second electrical contact positioned at the top side of the epitaxial structure,
wherein the second electrical contact is laterally distanced from the plurality of bottom-emitting emitters; and

a metal layer disposed on a bottom side of the substrate,
wherein the metal layer is electrically connected to the substrate, the bottom mirror, and the second electrical contact,
wherein the metal layer is configured to have a current path for a current, from the first electrical contact, to flow laterally across the metal layer and into the second electrical contact, and
wherein the metal layer includes one or more openings for light emission of the plurality of bottom-emitting emitters.