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43Tbps over a single fiber: World's fastest network would let you download a movie in 0.2 ...


A research group at the Technical University of Denmark (DTU), which was the first to break the one-terabit barrier in 2009, has today managed to squeeze 43 terabits per second over a single optical fiber with just one laser transmitter. In a more user-friendly unit, 43Tbps is equivalent to a transfer rate of around 5.4 terabytes per second ? or 5,375 gigabytes to be exact. Yes, if you had your hands on DTU's new fiber-optic network, you could transfer the entire contents of your 1TB hard drive in a fifth of a second ? or, to put it another way, a 1GB DVD rip in 0.2 milliseconds.

The previous record over a single optical fiber ? 26 terabits per second, set by Karlsruhe Institute of Technology way back in 2011 ? had remained unbroken for a surprisingly long period of time. DTU set a series of single-fiber world records in 2009 and 2011, but had since been forced to sit in Karlsruhe's shadow ? until now.

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