BT and Huawei have achieved broadband speeds of 3Tbps in a field trial, believed to be the fastest speeds ever achieved over a fibre cable in a real-world environment.
The partnership involved using a 369km fibre cable to link BT's Adastral Park research campus in Suffolk with the BT Tower in London.
The claimed record speeds were achieved by increasing the capacity of fibre cables by compressing the gaps between transmission channels that are usually limited to 50GHz. Effectively, the technique increases the density of the channels on a fibre cable to make it 50 percent more efficient than standard network cables.
The result is a 3Tbps super channel that consists of 15 sub-channels at 200Gbps combined to create a cable with the capacity to transmit approximately 100 high-definition films in one second.
The test used BT's Flexgrid fibre network infrastructure and Huawei's OSN 9800/8800 and iManager U2000 platforms.
Describing the speeds as an "outstanding breakthrough", Neil McRae, chief network architect at BT, said, "We are well prepared for a future where new and exciting services are delivered by faster, more data-hungry applications."
McRae added that the speed achieved shows how BT is able to maximise the efficiency of its existing fibre network and therefore extend the life of its core network infrastructure.
Huawei also declared its commitment to improving fibre broadband, with Zha Jun, president of the company's Fixed Network Business unit, noting the firm's $4bn planned investment in fixed broadband technology research and development over the next three years.
BT is also looking to improve the speed of its copper-based broadband networks, touting its G-Fast technology that achieves speeds of 1Gbps from its relatively archaic copper cabling.
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