Patent ID: 11888291
Assignee: OPTIPULSE INC.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. A multi-laser semiconductor apparatus comprising:
an active mesa structure;
a contact layer;
a structure separated from the active mesa structure;
a substrate that supports the active mesa structure, the contact layer, and the structure; and
an electrical waveguide;
wherein the active mesa structure comprises a single mesa having a plurality of semiconductor laser regions within the single mesa, each semiconductor laser region of the single mesa being electrically isolated within the single mesa relative to the other semiconductor laser regions of the single mesa;
wherein the contact layer extends beneath the active mesa structure;
wherein the structure provides a contact that shorts the structure to the contact layer to provide a path for a current flow from the electrical waveguide to deliver energy to the semiconductor laser regions;
wherein the electrical waveguide provides the current flow to the semiconductor laser regions and the structure via a plurality of electrical waveguide contacts, the electrical waveguide contacts comprising a first contact for electrical connection with the semiconductor laser regions and a second contact for electrical connection with the structure contact; and
wherein the contact layer is adapted to carry a current load from the electrical waveguide and spread current laterally through the contact layer to the active mesa structure including interior semiconductor laser region portions of the single mesa for injecting the semiconductor laser regions with current to produce lasing from the semiconductor laser regions.