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Japan sets new internet speed record – It’s 4 million times faster than average US broadband speed

Japan sets new internet speed record: what’s going on

Japan just broke a major record. Researchers achieved a data transmission rate of 1.02 petabits per second. That’s about 4 million times faster than the average internet speed in the US. If that sounds wild, it’s meant to. This was done by Japan’s National Institute of Information and Communications Technology. The team used a new kind of 19-core optical fiber cable. It’s the same size as usual fibers, but it handles huge amounts of data. The test ran the signal through loops to simulate 1,800 km of distance. The result is a breakthrough in long-distance, high-capacity internet.



How big is 1.02 petabits per second?

Let’s break it down. 1.02 petabits is 1,020,000 gigabits per second. That speed would let you download the entire Internet Archive in under four minutes. Or every movie on Netflix in a blink. One source says you could download the English Wikipedia 10,000 times in one second. It’s almost absurd. But it shows what’s possible with today’s infrastructure.


What made this possible

This is where the tech gets clever. The team packed 19 data-carrying cores into a single fiber. That’s a 19-lane speed lane inside a strand no thicker than what’s already used. Light in each core travels more evenly, so less data loss happens. They used amplifiers and loops 21 loops of 86 km each to preserve signal strength over long distance. It’s not just fast it’s practical. It can work with existing infrastructure.


Why it matters

The world is generating data faster than ever. AI, smart cities, autonomous systems they all need super-fast, reliable networks. Japan’s record shows what next-gen internet could look like. This isn’t for home users yet. But it sets the path for 6G backbones, inter-city links, and global cloud services.


The numbers at a glance

MetricValue
Speed1.02 petabits per second
Equivalent broadband factor≈ 4 million times faster than US average
Distance simulated≈ 1,800 km via 21 loops of 86.1 km
Fiber type19-core, same thickness as existing fiber
Practical impactUses current infrastructure


What comes next

This record comes from a lab setup. But it’s not a gimmick. The same decent-sized fiber supports this new tech. The team plans to explore real-world telecom applications next. What this really means is, we’re nearing networks that can handle AI, cloud, VR, and streaming without hiccups. It’s a big step forward in internet innovation.

Disclaimer
This blog is based on reports from July 2025 by NICT and trusted tech coverage. The experimental setup achieved 1.02 petabits per second under lab conditions. Real-world internet speeds remain much lower. While it shows what’s possible, everyday users will not see these speeds soon.

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2 Comments

  1. This breakthrough really highlightsBlog comment creation how far optical fiber technology can be pushed—19 cores in a cable the same size as current ones is a game-changer. What’s exciting is that it’s not just about raw speed, but also about making long-distance, high-capacity data transfer more efficient. The big question now is how soon this kind of infrastructure can be scaled for real-world use beyond the lab.

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