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. 2016 Sep 12;6:33306. doi: 10.1038/srep33306

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Copyright © 2016, The Author(s)

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(a) Received power and channel crosstalk of OAM = +1 and = +3 over 28 seconds and (b) instantaneous BER of OAM = +1 and = +3 over 28 seconds with and without CMA equalisation under thermal gradient-induced turbulence when both channels are transmitted. (c) Measured BER curves of OAM channel = +1 and = +3 with and without CMA equalisation. Ch.: channel. Eq.: equalization.

Inline graphic — (a) Received power and channel crosstalk of OAM = +1 and = +3 over 28 seconds and (b) instantaneous BER of OAM = +1 and = +3 over 28 seconds with and without CMA equalisation under thermal gradient-induced turbulence when both channels are transmitted. (c) Measured BER curves of OAM channel = +1 and = +3 with and without CMA equalisation. Ch.: channel. Eq.: equalization.