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Surface-emitting fibre lasers

Perfect ring-like beam

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Fibre lasers capable of producing stable, axially symmetric ring-like radiation from an extended surface may prove to be an important new light source for applications in medical imaging, sensing, bio-sensing and security systems.

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Figure 1: Illustration of laser operation.
Figure 2: Two types of modes with different angular momentum m.

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Authors and Affiliations

  1. Department of Electromagnetism and Telecommunication at the University of Mons, Andrei A. Fotiadi and Patrice Mégret are in the Photonics@be (IAP VI, BelSPo) group, 31, Boulevard Dolez, Mons, B-7000, Belgium,

    Andrei A. Fotiadi & Patrice Mégret

  2. Andrei A. Fotiadi is also with the Ioffe Physical-Technical Institute, St. Petersburg, Russia and Ulyanovsk State University, Ulyanovsk, Russia,

    Andrei A. Fotiadi

Authors
  1. Andrei A. Fotiadi
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  2. Patrice Mégret
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Correspondence to Andrei A. Fotiadi.

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Fotiadi, A., Mégret, P. Perfect ring-like beam. Nature Photon 6, 217–219 (2012). https://doi.org/10.1038/nphoton.2012.54

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