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3d ago

Japan Transmits Data at Unprecedented 1.02 Petabits per Second Over 1,808 Kilometers

NICT demonstrated that petabit-level speeds are achievable on standard fiber infrastructure without disclosing when the technology could reach consumers.

Japan's Internet Speed Sets A New Record
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Japan’s 1.02 Pbps internet speed could transform everything you do online.

Overview

  • NICT researchers achieved a laboratory transmission speed of 1.02 petabits per second, eclipsing the 402 terabits per second record set in 2024.
  • The test sent data across 1,808 kilometers by looping signals through 19 circuits in a coupled multicore fiber system.
  • Engineers used standard-sized optical cables to sustain petabit-level throughput, demonstrating compatibility with existing infrastructure.
  • The experiment reached a data density of 1.86 exabits per second per kilometer, the highest long-distance metric recorded to date.
  • Industry observers believe the breakthrough could inform future 6G networks, undersea cable upgrades and high-throughput cloud and AI applications; no commercial rollout timeline has been announced.