Finisar Corp. manufactures and distributes fiber optic subsystems and other electronic components. Its optical subsystems consist primarily of transmitters, receivers, transceivers, transponders and active optical cables that provide the fundamental optical-electrical, or optoelectronic, interface for interconnecting the electronic equipment used in building these networks, including the switches, routers and servers used in wire line networks as well as the antennas and base stations for wireless networks. The company was founded by Frank H. Levinson and Jerry S. Rawls in April 1987 and is headquartered in Sunnyvale, CA.