“A team from Denmark working at the German Karlsruhe Institute for Technology has broken the data transmission rate record previously set by a team in Germany (32 terabits per second). In this new effort, the team (with the High-Speed Optical Communications Group) achieved a rate of 43 terabits per second using just one laser and one fiber cable.”
Read more at: http://phys.org/news/2014-07-team-denmark-transmission-fiber-cable43.html#jCpWhile experimental, such results lead the way to new supercomputer and Internet technologies.
More real-world tests include a petabit per second over 50 kilometers test that occurred in 2012.
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