Optical Receivers - Optical Receivers are devices used to locate optical signals and then change them into electrical signals for further processing or storage. https://en.wikipedia.org/wiki/Fiber-optic_communication
Gigabit Passive Optical Networks (GPON)

Optical Amplifiers

Optical Connectors

Optical Couplings

Optical Cross-Connect (OCC, Optical Cross Connect)

Optical Disk Recorder (Optical Disks)

Optical Management System (OMS)

Optical Modulators

Optical Network Service, ONS

Optical Receivers

Optical Transceivers

Optical Transponder

Optical Transport Network (OTN)

Optical Transmitters

Reconfigurable Optical Add-drop Multiplexer (ROADM)

SONET - (Synchronous Optical Network)