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Showing 1–6 of 6 results
Advanced filters: Author: Fuchuan Lei Clear advanced filters

  • It is now shown that coupled optical microcavities bear all the hallmarks of parity–time symmetry; that is, the system’s dynamics are unchanged by both time-reversal and mirror transformations. The resonant nature of microcavities results in unusual effects not seen in previous photonic analogues of parity–time-symmetric systems: for example, light travelling in one direction is resonantly enhanced but there are no resonance peaks going the other way.

    • Bo Peng
    • Şahin Kaya Özdemir
    • Lan Yang
    Research
    Nature Physics
    Volume: 10, P: 394-398

  • Here the authors demonstrate ultraviolet astronomical frequency combs, derived from the near-infrared domain via efficient harmonic generation in nanophotonic waveguides, to provide precision calibration to astronomical spectrographs for exoplanet science and precision cosmology.

    • Markus Ludwig
    • Furkan Ayhan
    • Tobias Herr
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • Researchers demonstrated coherent dissipative Kerr solitons with a conversion efficiency exceeding 50% and good line spacing stability. The results may facilitate practical implementation of a scalable integrated photonic architecture for energy-efficient applications.

    • Óskar B. Helgason
    • Marcello Girardi
    • Victor Torres-Company
    ResearchOpen Access
    Nature Photonics
    Volume: 17, P: 992-999

  • Understanding noise dynamics in frequency combs is crucial for applications. Here, the authors study the phase noise dynamics and the linewidth of soliton microcombs, revealing that some comb lines can be more quiet than the pump laser itself.

    • Fuchuan Lei
    • Zhichao Ye
    • Victor Torres-Company
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • Platicons microcombs can be generated in photonic molecules from a continuous-wave pump, but their spectrum is typically distorted. The authors observe the formation of a platicon microcomb using a photonic molecule realized with two coupled microcavities, resulting in engineered microcomb spectrum approaching the ideal single microresonator case.

    • Israel Rebolledo-Salgado
    • Clara Quevedo-Galán
    • Victor Torres-Company
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-9