Japanese researchers have set a new global benchmark in internet technology, achieving a record-breaking data transmission speed of 1.02 petabits per second. This speed is around 3.5 million times faster than the average internet connection in the U.S., and nearly 16 million times quicker than India’s average of 63.55 Mbps.
The remarkable achievement was led by Japan’s National Institute of Information and Communications Technology (NICT), in collaboration with Sumitomo Electric and European research partners. The team used an innovative 19-core optical fiber cable to transmit data over a distance of 1,808 kilometers — roughly the span from London to Rome.
To understand how fast this is, experts explain that such speed could download the entire Netflix content library in less than a second. Large files, such as a 150GB video game like Warzone, could be downloaded almost instantly. In comparison, the average broadband speed in the U.S. is 290 Mbps — far behind the 1,020,000,000 Mbps recorded in this test.
The breakthrough is largely due to the cable’s design. Unlike standard fiber-optic cables that carry data through a single core, this new cable includes 19 separate cores within the same outer diameter. Researchers describe it as creating a “19-lane superhighway” for data, all while keeping it compatible with existing infrastructure.
One of the key challenges in long-distance data transmission is signal degradation. The team tackled this by building advanced amplification systems that can boost signals across multiple wavelength bands simultaneously. Using 180 different wavelengths and high-level signal processing techniques, they were able to preserve signal strength throughout the full test distance.
Although the technology is still in the lab-testing phase, experts see it as a major step forward in preparing networks for the future. With internet traffic rising due to the growth of artificial intelligence, smart vehicles, and billions of connected devices, innovations like this could help meet increasing demand without the need for building completely new infrastructure.
This world-record achievement demonstrates how next-generation optical fiber technology could eventually support the global data surge, enabling faster, more efficient, and more scalable internet networks in the years to come.’
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