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

Claim 14:
15. A vertical-cavity surface-emitting laser (VCSEL) array, comprising:
a substrate;
an epitaxial structure on the substrate;
a plurality of bottom-emitting VCSELs 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; and
a metal layer disposed on a bottom side of the substrate,
wherein the metal layer is electrically connected to 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.