A new world record was set in the speed of data transmission through optical fiber, using a single laser, and an international team of researchers ...
involving a Greek scientist, succeeded transfer rate of around 26 terabits per second.
Such an unimaginable speed, for example, allows the transmission of all information contained on the huge Library of Congress in just ten seconds.
The new technique uses a mathematical "tool", the so-called "fast Fourier transform, which allows to distinguish more than 300 separate colors in a laser beam, each of which can be codified and transferred, in parallel, separate information . In the early stages of visual technology, it was possible to integrate information (data) in only one color, but in recent years have seen a succession of advances that are increasing the volume and speed of data transmission.
Researchers (German, British, Swiss, Israelis, etc.), headed by Professor Wolfgang Freud Institute of Technology in Karlsruhe, Germany published the study in the journal photonics "Nature Photonics", according to BBC. Among them is the Greek origin Dr Periklis Petropoulos, the Optoelectronics Research Centre, University of Southampton in Britain. He graduated in 1995 from the Department of Electrical Engineering and Computer Science at the University of Patras in 2000 and got his PhD from the University of Southampton, where, today, working as a researcher specializing in telecommunications through optical fibers.
Although many lasers used simultaneously for sending data over fiber, the speed can be increased dramatically and has already achieved an experimental speed of 100 terabits per second. But it took so 500 laser, which makes the entire process prohibitively expensive for commercial exploitation.
The new method is able to achieve record speeds using a single laser, which makes it practically useful. According to the researchers, is that new technology can be incorporated into a "chip" of silicon, which will go on sale sometime in the future.
Posted by 9MOHAMED0 on Monday, May 23, 2011
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