Photonic ComputingCustom SiliconInterconnect & Networking · COHR
Coherent
Saxonburg, Pennsylvania, United States
About Coherent
Coherent makes optical materials, lasers and semiconductor components, including VCSELs (vertical-cavity surface-emitting lasers, used in 3D sensing), silicon carbide substrates and optical transceivers that move data over fibre. It began as II-VI Incorporated, founded in 1971 by Carl Johnson and James Hawkey, and made lenses and mirrors for CO2 lasers. In 2022 II-VI acquired the laser maker Coherent, Inc. and took its name. Its headquarters are in Saxonburg, Pennsylvania, north of Pittsburgh.
Coherent was founded in 1971 and is based in Saxonburg, Pennsylvania, United States. It is listed under Photonic Computing, Custom Silicon, Interconnect & Networking. Its shares trade as COHR on NYSE.
Compute Technologies
- Lasers
- Compound Semiconductors
- Optical Components
What Coherent works on
Photonic Computing
Photonic computing uses light instead of electricity to carry or process information. Photons have no charge, so light in a waveguide does not cause the resistive heating that current in a wire does, though lasers and modulators still use power, and many wavelengths can share one waveguide. The industry has two quite different parts: moving data with light, and computing with light.
Custom Silicon
Custom silicon means a company designs its own chips for its own products or data centers instead of buying standard parts. The chip is made by a foundry such as TSMC, but the design belongs to the customer.
Interconnect & Networking
Interconnect is the set of links that move data between chips, between boards and between racks. It includes wires on a package, cables inside a server, and the network switches and optical fibre across a data center. A processor is only as useful as the speed at which it can get data in and out.
Follow the share price on the stocks page (COHR).
Also in United States
GlobalFoundries, II-VI/Finisar (now Coherent), Celestial AI, Lightwave Logic, Rambus
