UCL engineers announced that they achieved the fastest data transfer rate in the world, setting the Internet speed by 1/5 faster than the previous record.
In collaboration with two companies, Xtera and KDDI Research, researchers under Lydia Galdino (UCL Electronic & Electrical Engineering) achieved data rates of 178 terabits per second (178,000,000 megabits per second), a speed at which it would be possible to download the entire Netflix library in less than a second.
This record, which has twice the capacity of any system currently in use in the world, was achieved by transmitting data through a wider range of light colors (wavelengths) than those typically used in fiber optics. The current infrastructure uses a limited wavelength of 4.5THz, with commercial 9Thz systems entering the market, while the researchers used a bandwidth of 16.8THz.
To achieve this, the researchers combined different amplifier technologies needed to amplify signal strength within this wider bandwidth and maximized speed by developing new GS (Geometric Shaping) motions for better use of properties. of light). Exactly what they did is described in a new scientific article by IEEE Photonics Technology Letters.
The benefit of the technique is that it can be utilized in existing infrastructure without much cost, upgrading the amplifiers that exist in fiber optic routes at distances breaks of 40-100 km.
According to the UCL, the new record is 1/5 higher than the previous world record set by a team in Japan. At this speed it would take less than an hour to download the data that make up the first image of a black hole in the world (which, due to its size, had to be stored on half a ton of hard drives, which were transported by plane). This speed is also close to the theoretical data transmission limit set by the American mathematician Claude Shannon in 1949.
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