At 319 Tbps, Japan Sets Fastest Internet Speed World Record Across 3,000 Km
In the paper, researchers have revealed that apart from the C- and L- bands that are often used with high data rate and long-distance transmission, the team also made use of the transmission bandwidth of S-band that had remained underutilised except the single-span transmission.
Researchers at the National Institute of Information And Communications Technology in Japan have set a new world record for the world¡¯s fastest internet speed at 319 Terabytes per second in the form of a long-haul transmission over 3,001 kilometres.
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The record was earlier held by researchers from the University College of London at 178 Tbps.
The research was led by Benjamin Puttnam and successfully completed the first S, C and L bands transmission over long haul distances through a four-core optical fibre in the standard diameter of 0.125mm. They revealed that the use of erbium and thulium-doped fibre amplifiers along with Raman amplification made this unbelievable feat possible.
As per the teams, they developed a transmission system with the ability to make use of the whole wavelength division multiplexing technology. They made use of different amplifier technologies to achieve a transmission demonstration data rate of 319 Terabytes per second. Along with this, they also became the first to produce 957 petabits per second x kilometre -- setting a world record for optical fibres that possess a standard outer diameter.
In the paper, researchers have revealed that apart from the C- and L- bands that are often used with high data rate and long-distance transmission, the team also made use of the transmission bandwidth of S-band that had remained underutilised except the single-span transmission.
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They also stated that the four core optical fibre with standard cladding diameter can be connected with existing equipment and can enable practical high data rate transmission soon. They believe that this research could contribute to the realisation of the backbone communications system that would be required for the spread of new communication services beyond just 5G.
Researchers have also stated that they¡¯ll continue to develop wide-band, long-distance transmission systems and look at ways to boost the transmission capacity of low-core-count multi-core fibres and other novel SDM fibres. They also aim to extend the transmission range to trans-oceanic distances.