These wavefront distortions arise from temperature differences in the atmosphere. In the joint demonstration, the wavefront distortions of the lowest order - the angle of arrival of the wavefront at the receiver - were compensated. DLR provided the concept and the optical systems required for successful atmospheric transmission. The new world record was achieved through a collaboration between DLR and ADVA. New world record in laser communications for satellites Optical free-space communications transports the high-rate data streams in a similar manner to optical-fibre communications in ground-based backbone networks. This is achieved using optical communications, as demonstrated in this test. In order to fully exploit this capacity, the satellites must be connected to the Internet.
The coverage area will be illuminated by numerous beams from the satellites, re-using radio frequencies and hence enabling a very high link capacity between users and the spacecraft. "Satellites play a key role in enabling global Internet access at high data rates everywhere," explains Christoph Günther, Director of the DLR Institute of Communications and Navigation.
Industry 4.0 and the Internet of Things are examples of this, and they both require broadband Internet connections. For that purpose, according to the BATS study, an aggregate data rate of three to four terabits per second would be required to serve all of Europe.īroadband Internet as a key for digitalisationĭigitalisation is a new revolution, which is transforming society, improving citizens' quality of life and enhancing the efficiency of economic processes. However, the actual goal is to provide broadband Internet via satellite to rural areas that are not connected to the terrestrial network infrastructure. The IP traffic in Germany in 2020, which is expected to grow to 144 petabytes per day, could also be supported.
At this data rate, the content of all printed the books in the world could be transmitted in approximately 30 seconds. The German Aerospace Center (DLR) is the national aeronautics and space research centre of the Federal Republic of Germany.Įighteen months after achieving their previous record, researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt DLR) - this time together with ADVA, a leading provider of open networking solutions - set a new record for data transmission using free-space laser communications - 13.16 terabits per second.
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