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Domain: alcatel-lucent.com
Stories and comments across the archive that link to alcatel-lucent.com.
Stories · 3
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Alcatel-Lucent's XG-FAST Pushes 10,000Mbps Over Copper Phone Lines
Mark.JUK (1222360) writes The Bell Labs R&D division of telecoms giant Alcatel-Lucent has today claimed to set a new world record after they successfully pushed "ultra-broadband" speeds of 10,000 Megabits per second (Mbps) down a traditional copper telephone line using XG-FAST technology, which is an extension of G.fast (ITU G.9700).
G.fast is a hybrid-fiber technology, which is designed to deliver Internet speeds of up to 1000Mbps over runs of copper cable (up to around 250 meters via 106MHz+ radio spectrum). The idea is that a fiber optic cable is taken closer to homes and then G.fast works to deliver the last few meters of service, which saves money because the operator doesn't have to dig up your garden to lay new cables. XG-FAST works in a similar way but via an even shorter run of copper and using frequencies of up to 500MHz. For example, XG-FAST delivered its top speed of 10,000Mbps by bonding two copper lines together over just 30 meters of cable. -
BT and Alcatel-Lucent Record Real-World Fibre Optic Speed of 1.4Tbps In the UK
Mark.JUK writes "The United Kingdom's national telecoms operator, BT, has successfully teamed up with Alcatel-Lucent to conduct a field trial that delivered real-world data speeds of 1.4 Terabits per second over an existing commercial-grade 410km fiber optic link. The trial used a 'record spectral efficiency' of 5.7 bits per second per Hertz and Flexgrid technology to vary the gaps between transmission channels for 42.5% greater data transmission efficiency than today's standard networks. The speed was achieved by overlaying an 'Alien Super Channel' (i.e. it operates transparently on top of BT's existing optical network), which bundled together 7 x 200Gbps (Gigabits per second) channels and then reduced the 'spectral spacing' between the channels from 50GHz to 35GHz using the 400Gb/s Photonic Services Engine (PSE) technology on the 1830 Photonic Service Switch (PSS). It's hoped that this could help boost capacity to those who need it without needing to lay expensive new fiber cables." -
Bell Labs Break Record With 31Tbps Via a Single 7200km Optical Fibre
Mark.JUK writes "Alcatel-Lucent's research and development division, Bell Labs, has successfully broken yet another record after it used 155 lasers (each operating at different frequencies and carrying 200Gbps of data over a 50GHz frequency grid) and an enhanced version of Wavelength Division Multiplexing (WDM) to send information at a staggering speed of 31 Terabits per second over a single 7200km long optical fibre cable. Previous experiments have been faster but only over shorter distances or by using a different type of fibre optic cable entirely."