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TOPOLOGICAL LASERS

Multitudes of twists

Nature Physics volume 17, pages 673–674 (2021)Cite this article

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Multiplexing increases the capacity of optical communication, but it is limited by the number of modes and their orbital angular momentum. A robust vortex laser now solves this problem by emitting several beams, all carrying large topological charges.

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Fig. 1: Robust light circling for vortex lasing based on the photonic quantum Hall effect.

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Authors and Affiliations

  1. State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, China

    Ren-Min Ma

  2. Frontiers Science Center for Nano-optoelectronics and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, China

    Ren-Min Ma

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  1. Ren-Min Ma
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Correspondence to Ren-Min Ma.

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The author declares no competing interests.

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Ma, RM. Multitudes of twists. Nat. Phys. 17, 673–674 (2021). https://doi.org/10.1038/s41567-021-01189-0

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