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400-Gbit/s Free-Space Optical Communications Link Over 120-meter Using Multiplexing of 4 Collocated Orbital-Angular-Momentum Beams

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Abstract

We experimentally demonstrate a 400-Gbit/s free-space optical communications link over 120 meters on the building roof by multiplexing four orbital angular momentum (OAM) modes (OAM l = ±1, ±3) each carrying a 100-Gbit/s data channel.

© 2015 Optical Society of America

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