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US 2021/0203131 A1Published application
Vertical cavity surface emitting laser devices
AssigneeAms Sensors Asia Pte. Ltd.
InventorsLaurence WATKINS, Jean-Francois Pierre SEURIN, Chuni GHOSH
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Abstract
A VCSEL device includes a substrate and a laser cavity that includes a gain section disposed between first and second reflectors. The VCSEL device is operable to emit light through a first end of the VCSEL device. The VCSEL device includes an anode surface mount contact and a cathode surface mount contact, each which is disposed at a second end of the VCSEL device opposite the first end of the VCSEL device.
Claims19
A VCSEL device comprising:
- a substrate;
- a laser cavity over the substrate, the laser cavity including a gain section disposed between first and second reflectors, wherein the VCSEL device is operable to emit light through a first end of the VCSEL device, the first end being closer to the first reflector than the second reflector;
- an anode surface mount contact;
- and
- a cathode surface mount contact,
- wherein each of the anode and cathode surface mount contacts is disposed at a second end of the VCSEL device opposite the first end of the VCSEL device, the VCSEL device further including:
- a first electrical connection at the first end of the VCSEL device, wherein the first electrical connection is routed to the anode surface mount contact by way of an opening through the substrate;
- and
- a second electrical connection at a surface of the second reflector, wherein the second electrical connection is routed to the cathode surface mount contact by way of an opening through the substrate.
6 more elements
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 routed to the cathode contact pad by way of an opening through the substrate.
6 more elements
Dependencies are inferred from the claim text.