Japanese scientists from the National Institute of Information and Communications Technology recently set a new world record for data transmission speed. It is now 319 Tbps and the data has been sent over a special optical fiber at a distance of 3,000 kilometers.
Thus, the data was transferred almost twice as fast as the previous record, which belonged to the University College of London (178 Tbps). That’s tremendous speed – over 50,000 messages can be sent through a link in a second. feature films, and the entire Spotify catalog can be downloaded in under three seconds.
For data transmission, a 4-core optical fiber with a standard cladding diameter, the outer diameter of which was 0.125 mm, was used. The data was transmitted on 552 channels using the WDM (Wavelength Division Multiplexing) technique.
Of course, the speed described was achieved under laboratory conditions. In practice, computer connections run much slower, and the record holder here is Singapore, which currently has the fastest fixed broadband connection operating at an impressive 2015 Mb / s.
Scientists hope that the technology they have developed will find practical application and enter, for example, connections that support 5G networks, significantly increasing their capacity.
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