Patent ID: 11916356
Assignee: LUMENTUM OPERATIONS LLC
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. A vertical cavity surface emitting laser (VCSEL) array, comprising:
a first set of VCSELs; and
a second set of VCSELs,
wherein the second set of VCSELs includes at least one degraded VCSEL, the at least one degraded VCSEL comprising one or more of:
a central current blocking implant, having an implant width less than a width of an active region of the degraded VCSEL, positioned substantially centrally with respect to a current confinement aperture of the degraded VCSEL,
an etched surface extending around dielectric via openings of the degraded VCSEL and to a depth approximately at a top surface of a top mirror of the degraded VCSEL,
or
a reduced via, etched through a dielectric passivation/mirror layer of the degraded VCSEL to expose a metal layer, the reduced via having a reduced size relative to other vias of the VCSELs in the first set of VCSELs;

wherein the first set of VCSELs and the second set of VCSELs are interleaved with each other to form a two-dimensional regular pattern of VCSELs; and
wherein the second set of VCSELs forms a random pattern of VCSELs within the two-dimensional regular pattern of VCSELs.