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Optical communications

Multiplexing twisted light

Exploiting the spatial shapes of 'twisted' photons makes it possible to enhance the bit rate of free-space optical communications without requiring more bandwidth.

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Figure 1: The concept of SDM.

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Correspondence to Juan P. Torres.

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Torres, J. Multiplexing twisted light. Nature Photon 6, 420–422 (2012). https://doi.org/10.1038/nphoton.2012.154

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