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Optical communications

Multiplexing twisted light

Nature Photonics volume 6, pages 420–422 (2012)Cite this article

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

The invention of the telegraph in the 1800s marked the beginning of a new era in the way we send and share information. This technology of telecommunication connected the world together1 and began a fundamental transformation of society2. Since the beginning of this electromagnetic era, engineers and scientists have searched for ways to send increasingly larger amounts of information in ever-smaller periods of time.

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Figure 1: The concept of SDM.

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Authors and Affiliations

  1. Juan P. Torres is at the Institut de Ciencies Fotoniques and the Department of Signal Theory and Communications at the Universitat Politecnica de Catalunya, Barcelona, Spain,

    Juan P. Torres

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  1. Juan P. Torres
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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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