“Fast Fourier Transform”: Used by researchers, sets new record for data transfer rate

By on May 23, 2011 in Education, Europe, Science, Technology, World Comments
 

Single laser
Image Credit: bbc.co.uk

As reported by BBC, May 22, 2011, that 26 terabits per second is the new record for the rate of data transfer by a single laser. Apparently, at that speed, 10 seconds is only needed to send down an optical fibre of an entire library of any congress.

Allegedly, the researchers used a technique that is known as “Fast Fourier Transform”, which unpicks more than 300 different colours of light in a laser beam, each encoded with its own string of information.

Based on reports, said technique is described in the journal as Nature Photonics.

Allegedly, researchers made significant progress for the last few years in search of higher data rates in light-based telecommunications technologies.

Records verify  that Wolfgang Freude, a co-author of the current paper from the Karlsruhe Institute of Technology in Germany, further informs that the total data rate possible using such schemes is limited only by the number of lasers available and that there are costs.

He was even quoted by BBC News saying, “Already a 100 terabits per second experiment has been demonstrated.”

“The problem was they didn’t have just one laser, they had something like 500 lasers, which is an incredibly expensive thing. If you can imagine 500 lasers, they fill racks and consume tens of kilowatts of power,” he adds.



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