What Does Optical Network Mean?

An optical network is a type of data communication network built with optical fiber technology. It utilizes optical fiber cables as the primary communication medium for converting data and passing data as light pulses between sender and receiver nodes.

Techopedia Explains Optical Network

Through its use of light as a transmission medium, an optical network is one of the fastest communication networks. It works by using an optical transmitter device to convert an electrical signal received from a network node into light pulses, which are than placed on a fiber optic cable for transport to a receiving device.