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Experimental Demonstration of Dense Fractional Orbital Angular Momentum (OAM) Multiplexing with a Channel Spacing of 0.2 Assisted by MIMO Equalization

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Abstract

We report fractional orbital angular momentum (OAM) dense mode-division multiplexing (DMDM) assisted by 2×2 MIMO equalization in free-space optical communications. Fractional OAM multiplexing communications even with a small OAM channel spacing of 0.2 are demonstrated in the experiment.

© 2016 Optical Society of America

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