Bell Labs claimed on Friday that it has doubled the distance and speed at which data can be transmitted over long-haul fibre optic networks.
The lab's owner, Lucent, argued that it would make it cheaper for carriers to offer higher bandwidth.
In a demonstration, Bell Labs said that it had sent a whopping 2.56Tbps across 2,500 miles, outstripping the previous record of 1.6Tbps over 1,250 miles.
The company achieved the massive rate by sending 40Gbps of data over each of 64 separate channels of fibre optic cable by a process known as diversion multiplexing, and a coding scheme called differential phase shift keying.
"This breakthrough will ultimately enable lower capital and operational costs for [carriers]," said Tim Sullivan, president of Lucent's optical networking group.
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