Researchers at the National Institute of Information and Communications Technology managed to break the speed record for an Internet connection by reaching a speed of 319 Terabits per second with a wired connection.

The previous record of 172 Terabits per second is shattered.

The researchers installed fiber over a distance of 3,000 kilometers.

The technology uses Wavelength Division Multiplexing (WDM) to transmit multiple signals of different wavelengths over a single fiber while amplifying the signal.

The researchers explain that their approach has the enormous advantage of being compatible with already existing infrastructures.

The test was also carried out with multicore optical fiber and a standard sheath.

According to these experts, nothing would prevent improving existing networks to achieve such speeds.

Coping with the explosion of data traffic

“Long-haul transmission, not previously demonstrated with S-band signals, was made possible by constructing an experimental recirculating transmission loop configuration that combined two types of rare-material doped fiber amplifiers with distributed Raman amplification on the along the transmission fiber itself. The quad-core MCF with a standard cladding diameter is attractive for the early adoption of SDM fibers in high-speed long distance links, as it is compatible with conventional cable infrastructures and is expected to have mechanical reliability comparable to single-mode fibers. . Beyond 5G,an explosive increase in new data services is expected and it is therefore crucial to demonstrate how new fibers can meet this demand. It is hoped that this result will help in the realization of new communication systems that can support new bandwidth-hungry services ”, explain the researchers.

The very technical document is available for reading at this address.


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