Japan sets new record for internet data transmission speed.

Japanese engineers have broken a record by successfully transmitting data at speeds more than 22 times faster per second than the global internet speed through a fiber optic cable.

The new fiber optic cable system has broken data transmission speed records. Photo: Depositphotos

The world's fastest consumer internet connection currently offers speeds of 10 gigabits per second (Gb/s). However, most conventional connections only reach speeds of a few hundred megabits per second (Mb/s). Currently, Japan's National Institute of Information and Communication Technology (NICT) has achieved extremely high data transmission speeds of up to 22.9 petabits per second (Pb/s). One petabit equals one million gigabits, fast enough to transmit the entire second-by-second traffic of the global internet network 22 times faster than the remaining bandwidth. Even NASA has only achieved speeds of 46 terabits per second, or 0.046 Pb/s.

To achieve this milestone, NICT leveraged several new technologies. Instead of using just one data transmission core, the cable contains 38 cores, each capable of transmitting data across a total of 114 spatial channels. Each mode within each spatial channel is comprised of 750 wavelength channels across three frequency bands (S, C, and L), for a bandwidth of 18.8 THz.

This technology has helped increase data transmission speeds to 22.9 Pb/s, more than double the previous record set in 2020. The research team at NICT says the current system could achieve even faster speeds of up to 24.7 Pb/s if error correction is optimized.

However, decoding the data involves complex signal processing, requiring the installation of specialized equipment called MIMO receivers across the network. In the shorter term, the 4-core fiber optic version, which transmits data in only one mode per core, is compatible with current infrastructure and offers speeds exceeding 1 Pb/s.

An Khang (According to New Atlas )

Source link: https://vnexpress.net/nhat-ban-lap-ky-luc-moi-ve-toc-do-truyen-du-lieu-internet-4685191.html