Patent ID: 11862942
Assignee: LUMENTUM OPERATIONS LLC
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A vertical-cavity surface-emitting laser (VCSEL) array, comprising:
a semiconductor substrate; and
a plurality of emitters on the substrate that conforms to an emitter pattern,
wherein the emitter pattern is oriented at a non-zero angle to a rectilinear axis of a diffractive optical element (DOE),
wherein the rectilinear axis is perpendicular to an optical axis of the DOE and horizontally or vertically aligned with a reference edge of a chip of the VCSEL array,

wherein the emitter pattern comprises two or more unit cells arranged to form the emitter pattern,
wherein each unit cell, of the two or more unit cells, includes a same number of emitters, and
wherein the two or more unit cells are arranged to cause a measurement of misalignment associated with two adjacent unit cells, of the two or more unit cells, to satisfy a misalignment threshold; and

the DOE configured to generate a dot projection from light emitted by the plurality of emitters of the VCSEL array,
wherein the dot projection comprises a plurality of tiles.