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Conferences > SPPCom > 2016 > SpM4E > SpM4E.1

To Twist or Not to Twist: Capacity Limits for Free-Space Channels

Joseph M. Kahn, Guifang Li, Xiaoying Li, and Ningbo Zhao

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Abstract

We show that orbital angular momentum (OAM) multiplexing does not realize the capacity limits of free-space channels. To approach the capacity limits, one should multiplex in a complete modal basis for the free-space channel or in parallel Gaussian beams.

© 2016 Optical Society of America

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