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Ciena® Corporation and BT have announced a series of pioneering trials over BT’s UK optical core network infrastructure. The successful trials in March 2013 included the transmission of 100, 200, and 400G, as well as an ‘800G super-channel’, the last of which equates to the simultaneous transmission of seven High Definition DVDs in a single second. Although transmission speeds have gone even higher in a laboratory environment, this milestone result was achieved over a deployed 410 km network link between BT’s Adastral Park Research and Development Centre in Ipswich and the iconic BT Tower in Central London.
BT and Ciena demonstrated support for Terabit-rate speeds over BT’s core network with a series of 100, 200, 400, and 800G transmission trials using WaveLogic 3 transceivers - deploying both single and super-channel techniques. The trials were performed on a high Polarization Mode Dispersion (PMD) fibre link – which was unsuitable for traditional 10G operation – underlining the robustness of Ciena’s coherent technology and its ability to be deployed in any environment.
The trials demonstrate the future-proof nature of BT’s core network – based on Ciena’s 6500 Packet-Optical and 4200 Advanced Services platforms – which supports its entire product portfolio, including superfast broadband and Ethernet services.
For one trial, 400G of traffic was carried and monitored over the network using 16QAM modulation, and operated flawlessly alongside adjacent 40G and 100G QPSK-based wavelengths, reinforcing the smooth migration path offered by Ciena’s coherent technology. With Wavelogic 3, BT can gradually increase network capacity according to the requirements of its wholesale and business customers while lowering costs and minimising its carbon footprint.
BT and Ciena partnership:
Ciena has been a strategic supplier to BT since 2003 and its technology is used in BT’s core infrastructure. The two parties entered into a strategic, multi-year collaboration agreement in January 2013 to jointly research and develop new applications and capabilities on BT’s next generation network.
