Solitons are waves with just a single crest. They result when a wave’s natural tendency to spread as it propagates is cancelled out by an inherently nonlinear phenomenon known as self-focusing. This means that solitons can travel a long distance whilst maintaining their same shape.

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News and Comment

  • News and Views |

    Judicious scaling of the waveguide properties of a simple hollow capillary fibre filled with helium allows for powerful pulse temporal compression down to the sub-femtosecond level, further enabling the efficient generation of ultrafast ultraviolet light.

    • Benjamin Wetzel
    •  & Fetah Benabid
    Nature Photonics 13, 509-511
  • Comments and Opinion |

    As a pioneer in the research on ultra-high-quality dielectric microresonators and their applications in nonlinear optics, frequency metrology and laser science, Mikhail Gorodetsky is badly missed.

    • Igor Bilenko
    • , Vladimir Ilchenko
    • , Farid Khalili
    •  & Tobias J. Kippenberg
    Nature Photonics 13, 506-508
  • News and Views |

    Spatial multiplexing enables the simultaneous generation of several low-noise frequency combs in a single microresonator, promising to enhance a host of applications such as multidimensional coherent spectroscopy.

    • Miro Erkintalo
    Nature Photonics 12, 645-647
  • News and Views |

    The generation and manipulation of cavity solitons in microresonators is creating new opportunities for Kerr combs to aid applications such as optical communications and spectroscopy.

    • Andrew M. Weiner
    Nature Photonics 11, 533-535