China conducts first test of a hollow optical fiber line over 1,000 km long at 64 Tbps
China has completed the world's first experiment on real-time two-way data transmission over a hollow optical fiber line more than 1,000 km long. The speed in each direction is 64 terabits per second, and the latency over 1,000 km is 3.43 milliseconds. The technology is already in use on the world's first cross-border commercial line between Shenzhen and Hong Kong.
Otabek Yusupov