Divergence of an orbital-angular-momentum-carrying beam upon propagation

Abstract

There is recent interest in the use of light beams carrying orbital angularmomentum (OAM) for creatingmultiple channels within free-space optical communication systems.One crucial issue is that, for a given beam size at the transmitter, the beamdivergence angle increases with increasingOAM.Therefore the larger the value ofOAM, the larger the aperture… (More)

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@inproceedings{Padgett2015DivergenceOA, title={Divergence of an orbital-angular-momentum-carrying beam upon propagation}, author={Miles J. Padgett and Paul Lavery and AntonZeilinger andRobertWBoyd}, year={2015} }