Finisar

Finisar Corporation was a global technology leader in optical communications. Headquartered in Sunnyvale, California, Finisar designed, developed, and manufactured optical subsystems and components used in data communication and telecommunication networks. Their products enabled high-speed data transmission for applications such as cloud computing, data centers, and wireless infrastructure.

Finisar's offerings included a broad portfolio of optical transceivers, optical engines, wavelength selective switches (WSS), and active optical cables. These products were crucial for connecting servers, routers, and switches in modern networks, enabling the bandwidth necessary for high-performance computing and communication.

The company served a diverse customer base, including network equipment manufacturers, telecommunications service providers, and data center operators. Finisar played a significant role in the development and adoption of key technologies in the optical communications industry, contributing to standards and driving innovation in areas like 400G and beyond.

In 2019, Finisar was acquired by II-VI Incorporated (now Coherent Corp.), becoming a part of a larger entity with a broader range of photonics and materials technologies. Following the acquisition, the Finisar brand was gradually integrated into the Coherent Corp. brand identity, though the legacy of Finisar's innovations in optical communication technology remains relevant.