Japanese NICT Sets New World Record in Data Transmission Rate

TapTechNews on June 28, the National Institute of Information and Communications Technology (NICT) of Japan, in collaboration with several research institutes, achieved a data transmission rate of 402 Tb/s without upgrading the existing fiber optic infrastructure, setting a new world record.

NICT presented at the 2024 Optical Fiber Communication Conference held in San Diego and introduced this achievement through papers.

NICT transmitted signals through 1505 channels over a 50-kilometer (about 31 miles) long optical cable, using 6 kinds of amplifiers and 1 optical gain equalizer, and achieved a transmission speed of 402 Tb/s by utilizing the unused 37 THz bandwidth.

This technology can make the data transmission rate capacity 25% higher than the previous record and the transmission bandwidth increase by 35% under the condition of using the existing fiber optic infrastructure, indicating that the current fiber measures still have great potential worth exploring. TapTechNews attached the list as follows:

The demonstration also showed that the currently used wavelength division multiplexing technology (WMD) can cover all major transmissions and provide these speeds by using the undeveloped frequency bands.