Korean Media: China Sets Another World Record with 2.5 Million GB per Second!
On April 28, South Korean media outlet NEWSPIM published an article stating that China has developed an optical communication network capable of transmitting 2.5 million GB of data per second.
The China National Information Technology Group has achieved a technological breakthrough in ultra-large-scale real-time data transmission. The group developed a 24-core optical fiber cable—unlike traditional single-core cables. Using this 24-core cable, the company conducted bidirectional data transmission tests over a distance of 10.3 kilometers. The results showed a transmission speed of 2.5 Pb/s, meaning data transfer reached as high as 2.5 million Gb per second. Some experts commented that, purely in terms of speed, this is currently the fastest optical communication network in the world.
A standard single optical fiber typically transmits at around 400 Tb/s. Although laboratory tests have already achieved speeds in the tens of Pb/s range, it is the first time that a company like China National Information Technology Group has achieved such high speeds in actual long-distance cable testing.
The group's fiber-optic technology is considered to be entering its initial commercialization phase. Currently, 7-core optical cables are undergoing pilot deployment in China. While the 24-core optical cable has completed technical validation, it still faces numerous challenges, such as reducing unit costs through large-scale production and replacing existing infrastructure. Practical application is expected to begin around 2030.
Original article: toutiao.com/article/1863700724240394/
Disclaimer: The views expressed in this article are solely those of the author.