Scientists connected with the American Bell Laboratories have developed a technology in which by applying a second, reflected beam of the reach of a fiber connection considerably can be increased. Also the speeds would be higher.
The scientists describe in the journal Nature Photonics, the concept of phase conjugate. This is on a fibre optic connection in addition to a light beam, a second, reflected beam is sent. By applying this technique, which is similar to the use of noise cancellation noise-cancelling headsets, and reconstruct the two bundles at the receiver, so-called nonlineaire disturbances and noise in each bundle against each other are filtered out. This would allow data through fiber can be sent over distances that are a factor four higher than with the current technology.
By the use of phase conjugate, the researchers managed to get over a distance of 12.800 km data to send at a speed of 400Gbit/s. In addition, according to the scientists of Bell Laboratories, for even higher data rates, because the error recognition with the technology being used greatly improved.
Bell Labs think that the technology within the next few years on existing fiberverbindingen can be applied. This would cause the available capacity, in particular, submarine fibre-optic cables as backbones serve to better use.
