Japan’s new web velocity file makes at present’s broadband look historic

Over the previous 20 years, internet speeds have vastly improved because of advances in fiber expertise. Whereas gigabit web is turning into more common within the US, it nonetheless lags behind the speeds lately achieved by researchers in Japan.

In response to the Nationwide Institute of Info and Communications Know-how (NICT) in Japan, it has set a brand new world file for web velocity, reaching 1.02 petabits per second over a distance of 1,123 miles. That equals about 127,500 GB/s, and roughly the space between Chicago and Dallas. With that velocity, you possibly can obtain Netflix’s total streaming library in only one second (by way of CNET). You’d additionally by no means have a difficulty downloading a 100GB online game ever once more.

Within the US, web velocity is often measured in megabits per second (Mbps). If you happen to convert Japan’s achievement, it equals roughly 1,020,000,000 Mbps. In response to Speedtest, the common mounted broadband web velocity within the US is round 288 Mbps. So, the velocity researchers in Japan have simply reached is greater than 3 million occasions quicker.

How did NICT researchers obtain this?

They used a 19-core optical fiber cable

Japan’s NICT achieved its new web velocity file by creating an optical fiber with 19 cores, built-in right into a cable measuring simply 0.125mm in diameter. This dimension is commonplace for fiber optic cables used globally, indicating potential for widespread adoption as a result of its compatibility with present community infrastructure, like undersea cables.

“The analysis of ultra-high-capacity transmission utilizing coupled 19-core optical fibers and superior optical amplification has vastly superior the event of expertise for the belief of high-capacity, long-distance optical communication infrastructure sooner or later,” the NICT report states.

This is not the primary time the NICT has damaged a file both. Final yr, it shattered the web velocity file with a velocity of fifty,250 GB/s. Now in 2025, it has damaged its file by over double.

With the worldwide demand for greater web bandwidth rising — particularly for cloud storage, AI, and high-quality streaming — the NICT’s breakthrough marks a significant step in addressing the rising want for extra bandwidth. In response to Nielsen’s Law, international bandwidth calls for have elevated by 50 p.c yearly since 1983, indicating that in the future, 1.02 petabits per second could also be wanted.

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