Optical Transport Network (OTN) - Standards and specifications proposed by the ITU-T. An Optical Transport Network (OTN) is composed of a set of Optical Network Elements connected by optical fibre links. These are able to provide transport, multiplexing, routing, management, supervision and survivability of optical channels carrying client signals. (Also see ITU-T G.709.) www.itu.int

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)