Japanese researchers achieve 1.2 Tbps optical signal transmission

A Japanese consortium of joint research partners including the National Institute of Informatics (NII), Nippon Telegraph and Telephone Corporation (NTT), Nippon Telegraph and Telephone East Corporation (NTT EAST), and Fujitsu Limited today announced that they have constructed the world’s longest transmission link at 1.2 Tbps per optical wavelength and succeeded in full throughput transmission and the world’s largest capacity data transfer over 1 Tbps using a pair of general-purpose 1-socket servers on October 17, 2023.

This field trial was conducted using NTT EAST’s commercial optical fiber, NTT’s digital signal processing technology and devices, Fujitsu’s next-generation optical transmission system 1FINITY Ultra Optical System, and Massively Multi-Connection File Transfer Protocol, a file transfer protocol developed by NII.

This achievement opens the door to a variety of high-speed, high-capacity communication services, including academic communication networks, while simultaneously contributing to lower costs and lower power consumption. The research group will use this achievement to further advance academic communication networks and promote research and development toward the realization of the Innovative Optical and Wireless Network.

CT Bureau