Japan’s Breakthrough in Optical Fiber Data Transmission

In a groundbreaking study conducted in Japan, researchers achieved a staggering data transmission rate of 1.02 petabits per second using an optical fiber cable of standard thickness (0.125 mm). This speed equates to transferring approximately 10,000 4K movies in just one second. The cornerstone of this achievement was a specially designed optical fiber featuring 19 cores.

To facilitate this remarkable transmission, the research team devised 19 loops, each comprising a single fiber, through which the signal was circulated 21 times. This method enabled data to be transmitted over an impressive distance of 1808 kilometers. At the receiving end, a 19-channel receiver collected the signals, and the ultimate data transmission rate was computed via a sophisticated digital processor.

Maintaining High-Speed Over Long Distances

This study demonstrated that such high-speed data transmission is sustainable over extensive distances, surpassing previous experiments that achieved 1.7 petabits per second over only 63.5 kilometers. Furthermore, it set a new global benchmark for the “speed × distance” metric, achieving 1.86 exabits per second/kilometer.

The researchers emphasized that this breakthrough could lay the foundation for a novel information and communication infrastructure capable of supporting the burgeoning data traffic, particularly in the evolving post-5G era.

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