Photonic ComputingCustom Silicon
II-VI/Finisar (now Coherent)
Saxonburg, Pennsylvania, United States

About II-VI/Finisar (now Coherent)
Coherent Corp. was known as II-VI Incorporated until it took the name of laser maker Coherent, Inc. after acquiring it in 2022. It makes optical materials, lasers and semiconductors, including vertical-cavity surface-emitting lasers (VCSELs) and silicon carbide substrates. It also owns the Finisar optical business bought in 2019, which supplies optical components for data networks. Carl Johnson and James Hawkey founded the company in 1971, and it is headquartered in Saxonburg, Pennsylvania and listed on the NYSE as COHR.
II-VI/Finisar (now Coherent) was founded in 1971 and is based in Saxonburg, Pennsylvania, United States. It is listed under Photonic Computing, Custom Silicon.
Compute Technologies
- Optical Transceivers
- Compound Semi
What II-VI/Finisar (now 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.
Also in United States
Inphi (now Marvell), GlobalFoundries, Coherent, Oxmiq Labs, Applied Materials



