Fiber optics managed to pass 15.5 Tb (15 500 GB or 1937 GB) of data per second

Engineers Alcatel Lucent announced earlier this week have managed to pass through an optical link, 15.5 Tb (15 500 GB or 1937 GB) of data per second over a distance of 7000 km, the equivalent of 400 DVDs for a transmission speed estimated at 100 petabit / s (100 million GB) per kilometer.

To do this, Bell Labs, the research entity of Alcatel Lucent, said to have used a model of WDM (Wavelength Division Multiplexing, or wavelength multiplexed) which allowed him to circulate simultaneously 155 laser length d 'wave different, each being able to carry 100 Gb / s data.

To ensure signal transmission over thousands of miles, it is necessary to use repeaters, which is responsible for receiving the signal and amplify it before forwarding it. Another cause for celebration for AL: the engineers in charge of this record would have managed to avoid each of these transponders of 90 km, a distance of 20% higher than current optical networks.

According to the firm, the velocities obtained here are almost ten times higher than that observed in the cables that operate between the continents. It hopes to demonstrate its expertise in infrastructure network and prove its ability to meet the growing needs of the global Internet bandwidth. Meanwhile, some leave no doubt going to imagine access to download as quickly.