Tests at Alcatel-Lucent’s Innovation City campus in France result in data speeds of 31 Terabits per second over 7200 kilometers, the highest sub-sea capacity ever transmitted on a single optical fiber
Paris, July 16, 2013 — Alcatel-Lucent (Euronext Paris and NYSE: ALU) has broken a new record for the amount of data that can be transmitted over transoceanic distances on a single optical fiber.
In a test carried out at Alcatel-Lucent’s Innovation City campus in Villarceaux near Paris, researchers from Bell Labs successfully sent data at speeds of 31 Terabits-per-second (Tbps) over 7200km – a capacity exceeding that of the most advanced commercial undersea cables today by a factor of three. This was achieved with a span – the distance between amplifiers maintaining the entire length – of 100km.
The researchers were able to achieve the highest-ever capacity for undersea data transmission on a single fiber. The experiment leveraged Bell Labs’ pioneering work in 200 Gigabit per second (Gbps) single-carrier data channels*. At such speeds and distances signal distortions and noise make data recovery very challenging. To counter this problem, in this new test Bell Labs researchers made use of innovative detection techniques and harnessed an array of technologies in modulation, transmission, and signal processing twinned with advanced error correcting coding.
The experiment used 155 lasers, each operating at a different frequency and carrying 200 Gbit/s over a 50 GHz frequency grid to dramatically enhance the performance of current WDM (Wavelength Division Multiplexing) systems, which are today being deployed with speeds up to 100G.
Details of the experiment were presented in a post-deadline paper presented earlier this month at Opto-Electronic Communication Conference (OECC) conference in Japan. This record is the latest in a long series of two dozen records over the past 15 years, all showcasing breakthroughs by Alcatel-Lucent that have transformed long distance data transmission. Among them is the invention of Dense Wave Division Multiplexing (DWDM), the introduction of non-zero dispersion fiber and single-carrier coherent detection.
Philippe Keryer, Chief Strategy & Innovation Officer of Alcatel-Lucent said: “Undersea fiber-optic transmission is integral to the digital economy, delivering vast amounts of video and data between countries, regions and continents. As our customers cope with increasing demand on their networks for data capacity and higher-speeds of transmission, our researchers are intensifying their application with tests like this to develop new technology solutions to transform global data networks. This underlines the strategic R&D focus we recently announced as part of The Shift Plan.”
* First presented at the ECOC (European Conference on Optical Communications) conference in 2011
About Alcatel-Lucent (Euronext Paris and NYSE: ALU)
Alcatel-Lucent is at the forefront of global communications, providing products and innovations in IP and cloud networking, as well as ultra-broadband fixed and wireless access to service providers and their customers, enterprises and institutions throughout the world.
Underpinning Alcatel-Lucent in driving the industrial transformation from voice telephony to high-speed digital delivery of data, video and information is Bell Labs, an integral part of Alcatel-Lucent and one of the world’s foremost technology research institutes, responsible for countless breakthroughs that have shaped the networking and communications industry. Alcatel-Lucent innovations have resulted in the company being recognized by Thomson Reuters as a Top 100 Global Innovator, as well as being named by MIT Technology Review as amongst 2012’s Top 50 “World’s Most Innovative Companies”. Alcatel-Lucent has also been recognized for innovation in sustainability, being ranked Technology Supersector Leader by the Dow Jones Sustainability Index in 2012 for making global communications more sustainable, affordable and accessible, all in pursuit of the company’s mission to realize the potential of a connected world.
With revenues of Euro 14.4 billion in 2012, Alcatel-Lucent is listed on the Paris and New York stock exchanges (Euronext and NYSE: ALU). The company is incorporated in France and headquartered in Paris.
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