In a transatlantic trial recently, Cisco has achieved a new capacity milestone. They put their NCS1004 platform through its paces on the new MAREA cable, achieving 26.4Tbps of total capacity on a single fiber pair.
MAREA stretches between Virginia Beach and the Spanish port of Bilbao, with 8 total fiber pairs. It was built by a consortium including Telxius, Facebook, and Microsoft on an alternative southern route between the US and Europe. And as some of the newest subsea fiber in place, it’s a great place to test drive the full capabilities of optical gear in a real world scenario.
Cisco’s trial leveraged 400G wavelengths and achieved a spectral efficiency of 6.445/b/s/Hz with plenty of margin. They also tested the looped-back scenario of 13,200km and managed 18.9Tbps with 4.52 b/s/Hz in spectral efficiency.
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Categories: Telecom Equipment · Undersea cables
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