Japan Has Shattered the Internet Speed Record at 319 Terabits per Second

[Alberto Gaitan]

"As if there's no limit to this monumental achievement, the record was accomplished with fiber optic infrastructure that already exists (but with a few advanced add-ons). The research team used four "cores", which are glass tubes housed within the fibers that transmit the data, instead of the conventional standard core. The signals are then broken down into several wavelengths sent at the same time, employing a technique known as wavelength-division multiplexing (WDM). To carry more data, the researchers used a rarely-employed third "band", extending the distance via several optical amplification technologies."

https://interestingengineering.com/japan-shattered-internet-speed-record-319-terabits