Japan Sets New Record in Fiber Optic Data Transmission
Japan has achieved a breakthrough in fiber optic technology, setting a new world record for data transmission speed over long distances.
Researchers from the National Institute of Information and Communications Technology (NICT) announced that they successfully transmitted data at 1.02 petabits per second over a distance of 1,123 miles (about 1,807 km).
The experiment was led by Hideyaki Furukawa and used a newly developed multi-core fiber, which contains 19 separate light paths within a single cladding. Despite the advanced technology, the fiber is just 0.005 inches in diameter—similar to standard optical cables—making it easily adaptable to existing network infrastructure.
To improve performance, researchers intentionally mixed signals across the cores and then used digital signal processing at the receiver end to separate them. This technique, known as MIMO (Multiple Input, Multiple Output), helped reduce signal loss significantly.
They also used 180 different wavelengths, each using 16QAM modulation, which increased data-carrying capacity. The test involved 19 recirculating loops with 53.5 miles of fiber each. Signals were passed through the loops 21 times, reaching a total transmission distance of 1,123 miles.
Experts say this innovation could revolutionize global internet infrastructure, offering faster and more reliable networks. With this achievement, Japan has taken a significant lead in a field where the U.S. has traditionally been dominant.
