Abstract

Orbital Angular Momentum (OAM) multiplexing is a new multiplexing dimension after the existing multiplexing technologies. OAM and MIMO technology are combined to the OAM-MIMO, which can greatly improve the channel capacity of wireless optical communication. The coding and modulation of information, the generation, transmission and separation of OAM superposition states are studied, the influence of atmospheric turbulence on OAM superposition states is discussed. It lays a theoretical foundation and provides an experimental basis for the application of OAM multiplexing technology.

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