Patent ID: 11967798
Assignee: AMS SENSORS ASIA PTE. LTD.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 7:
8. A top-emitting VCSEL device comprising:
a substrate;
a plurality of epitaxial layers on the substrate, including a laser cavity having a gain section disposed between first and second distributed Bragg grating reflectors, wherein the VCSEL device is operable to emit light through a top side of the VCSEL device, the top side being closer to the first distributed Bragg grating reflector than the second distributed Bragg grating reflector, and wherein the first distributed Bragg grating reflector is partially-reflecting;
an anode contact pad; and
a cathode contact pad,
wherein each of the anode and cathode contact pads is disposed at a bottom side of the VCSEL device opposite the top side of the VCSEL device, the VCSEL device further including:
a first electrical connection at the top side of the VCSEL device, wherein the first electrical connection is routed to the anode contact pad by way of an opening through the substrate; and
a second electrical connection at a surface of the second distributed Bragg grating reflector, wherein the second electrical connection is either routed to the cathode contact pad by way of a same opening through the substrate as the first electrical connection is routed to the anode contact pad or by way of direct contact with the substrate.