Using new fiber-optic technology, Japanese researchers have doubled the previous record for the highest Internet speed, and reported access to the Internet at 319 terabits per second. They believe that this technology can be used in current standard networks.
According to Motherboard , Japanese scientists at the National Institute of Information and Communication Technologies (NICT) broke the Internet speed record by recording a transfer rate of 319 terabits per second. The record for the fastest internet in the world was previously set in August 2020 at 179 terabits per second by a group of British and Japanese researchers.
NICT achieved this high speed by upgrading all network components. The fiber-optic line had four cores instead of a conventional one, and the researchers used a 552-channel laser with different wavelengths. This laser was rarely amplified by ground stations.
Although the experiment was performed under controlled laboratory conditions, the researchers used twisted fiber to transmit information over a simulated distance of approximately 3,000 kilometers so as not to lose signal quality or speed.

However, such experiments always take a long time to take effect. Quad-core fiber may be used in existing networks, but a system with this technology would be very expensive. For now, we have to wait to see the initial uses of this system in Internet infrastructure and projects where network capacity and speed are more important than cost figures.
Researchers at NICT believe that their greatest achievement has been the construction of quad-core fiber optics. This fiber is the same size as ordinary fibers and researchers believe it can easily be used in current standard systems to increase speed. The next generation of Japanese fiber also brings us closer to using technologies beyond 5G, such as 6G.
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