Lightpath (optical network)
From Wikipedia, the free encyclopedia
Look up lightpath in Wiktionary, the free dictionary.
In optical networking, a lightpath is a path between two nodes in an optical network between which light passes through unmodified.
When a lightpath can be established between source and destination node endpoints, the connection is totally optical and avoids bandwidth throttling by intermediate electronic conversions and processing.[1] A lightpath passing through an optical add-drop multiplexer (OADM) is known as a cut-through lightpath. A lightpath added or dropped at an OADM is known as an added/dropped lightpath.[2]