wiredInUSA April 2019

High-speed crossing

The MAREA transatlantic subsea cable, a joint venture between Facebook and Microsoft, has achieved a data transfer speed of 26.2Tb per second on a pair of its fiber optic cables during an experiment. A press release in March said that the experiment yielded a 20 percent increase in the theoretical maximum — it was previously thought that the maximum transfer rate per fiber pair was 20Tb per second.

In 2016, Facebook and Microsoft joined forces to build and deploy the MAREA cable, believed to be the highest-capacity undersea cable to date. The cable stretches from Virginia Beach to Bilbao, Spain, and originally hadadesign capacity of 160Tb per second, with each of the line’s eight fiber optic pairs capable of 20Tb. A recent experiment using 16 QAM modulation produced the data transfer rate of 26.2Tb per second on one of the fiber pairs.

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wiredInUSA - April 2019