Alcatel-Lucent gets the record for fastest undersea data transmission

Transoceanic data is a big business which may be about to be sped up thanks to a team’s research at Alcatel-Lucent’s campus near Paris, who have broke the world record for fastest undersea data transmission.

Researchers at the site from Bell Labs sent data at speeds of 31 Terabits-per-second (Tbps) along 7200km; three times faster than previous commercially-available cables.

This was achieved over a span of 100km (the distance between amplifiers.)

Philippe Keryer, Chief Strategy & Innovation Officer of Alcatel-Lucent said: "Undersea fiber-optic transmission is integral to the digital economy, delivering vast amounts of video and data between countries, regions and continents.”

He continued: “As our customers cope with increasing demand on their networks for data capacity and higher-speeds of transmission, our researchers are intensifying their application with tests like this to develop new technology solutions to transform global data networks."

The test made use of Bell Labs incredible work into single-carrier data channels which can transmit at 200 Gigabit per second (Gbps).

At such high speeds, and over such distance, data recovery is challenging due to noise and signal distortions. Bell Labs researchers utilised innovative techniques in modulation, transmission, and external linksignal processing twinned with advanced error correcting coding to help counter this.

Making use of 155 lasers, each at a different frequency, carrying 200 Gbit/s over a 50 GHz frequency grid; this is the latest in a long succession of breakthroughs from Alcatel-Lucent.

What do you think about Alcatel-Lucent’s record-breaking new technology?

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