Researchers from Austria for the first time in the field and sent a long distance twisted beam. This experiment opened the door to an incredibly high data transfer speed era.
Previous studies have shown that if a certain color, or wavelength, the light beam is twisted into a corkscrew-shaped "whirl" generated a lot of channels, which can be sent to the data. This transfer is quicker, because instead of a single wavelength of use (the communication channel), light theoretically can be twisted in an infinite number of strands, each of which acts as a channel configuration.
This rotation characteristic, known as orbital angular momentum (OKM), scientists have been applied previously: then reached 2.56 terabits per second data transfer rate, which is more than 66 DVDs capacity.
They implemented using optical fiber, but it is only suitable for certain types of communication, which uses light (land and satellite communications support). Therefore, the researchers decided to send a twisted beam of light in free space (above the City of Vienna). So far, this has been done only a short distance and closed laboratories.
In a recent study, researchers from the University of Vienna and the Quantum Optics and Quantum Information Institute, used a green laser beam sent folded light into the lens, posted on Meteorological Institute and geo-dynamics tower.
The researchers transferred 16 different wave length twisted configurations of about 3 miles. Camera light beams were recorded, and artificial neural network facilitated the deployment of air turbulence potential interference.
After these 16 models, the researchers they had encoded the real information - the black and white of Wolfgang Amadeus Mozart, Ludwig Boltzmann and Erwin Schrödinger images.
Study co-author Mario Krenn said: "We have shown that information can be encoded into the twisted light and is sent over long distances just above the town, in spite of the air turbulence interference.
Krenn and other contributors believe that the light orbital angular momentum (OKM) may also be used for quantum communication experiments the polarized or rotating "photon (light particle) is transmitted between the two objects. Each photon has its own separate OKM. Their spins create new configurations, which means transmits more information.
