Sciences & Technologies

Le Japon bat le record de vitesse et transfère 319 Terabits par seconde

Source : Vice

Le Japon vient de battre le record de vitesse de transfert de données sur internet, auparavant de 178 Tb/s détenu par des ingénieurs japonais et anglais depuis un an. C’est-à-dire un progrès du simple au double en un an seulement, et dans une période dans laquelle les données sont un facteur déterminant de puissance.

L’article original en anglais :

A combination of rare earth minerals, a new kind of fiber optic cable, and a fancy laser system pushed data to speeds never before seen.

Researchers at Japan’s National Institute of Information and Communications Technology (NICT) have broken the internet speed record with a stunning 319 terabits per second. That’s double the previous record of 178 Tb/s set a year ago by engineers in Japan and the U.K.

The speed test was performed in a lab using advanced fiber optic technology. Many fiber optic cables contain one core and a lot of cladding, or covering, to protect the data inside. NICT’s system used an experimental strand of fiber optic cable with four cores housed in a cable roughly the size of a standard fiber optic line.

“The 4-core [multi-core fibers] with standard cladding diameter is attractive for early adoption of [space division multiplexing] fibers in high-throughput, long-distance links, since it is compatible with conventional cable infrastructure and expected to have mechanical reliability comparable to single-mode fibers,” NICT said in a paper about the experiment.

NICT looped the data through coiled bits of fiber optic that simulated a transmission distance of 3,001 km or about 1,864 miles without a degradation of the signal or speed. That’s impressive, but there’s still a lot of work to do and the method of attaining this speed was complicated.

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Source image : Pexels