Internet speed records of several gigabits a decade ago now seem slow. so smash Researchers at Japan’s National Institute of Information and Communications Technology (NICT) set the Internet speed record at 319 terabits per second.
That’s double the previous internet speed record of 178 terabits per second set by engineers in Japan and the UK a year ago.
The speed test was conducted in a lab using advanced fiber optic technology. Many fiber-optic cables have a single core and lots of padding or covering to protect the data inside.
The NICT system used a pilot strand of four-core fiber-optic cable contained in a cable approximately the size of a standard fiber-optic line.
In a research paper on the experiment, NICT said: “Quad-core fibers with a standard lining diameter are attractive for early adoption of fibers in high-throughput, long-range splices.” This is because it is compatible with traditional cable infrastructure. It is expected to have mechanical reliability comparable to mono-core fibres.
NICT transmits data through coiled sections of optical fibers that simulate a transmission distance of 3,001 km without signal or speed degradation. But there is still much work to be done. The method for achieving this speed was also complex.
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Breaking the internet speed record
The researchers used a 552-channel laser of multiple wavelengths pushed through amplifiers made of rare earth metals to achieve great speed.
The engineers envisioned this being used primarily to quickly push data over vast distances rather than allowing video games to be downloaded instantly.
However, the team believes that the primary innovation here is the new quad-core fiber optic cable it has developed. It is the same size as a standard fiber optic cable.
NICT believes that it can be easily implemented in existing systems to dramatically increase speed. “Standard bushing diameter and quad-core optical fibers can be connected to existing equipment,” he said.
He added, “It is hoped that these fibers will enable practical transmission at a high data rate in the near term.” This contributes to the realization of the backbone communication system, which is essential for the spread of new communication services beyond 5G.
As with many of these experiments, it may be a long time before this performance has a measurable impact.
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