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Brillouin-induced Kerr frequency comb in normal dispersion fiber Fabry Perot resonators

Author

Listed:
  • Thomas Bunel

    (UMR 8523 PhLAM Physique des Lasers Atomes et Molecules)

  • Julien Lumeau

    (Institut Fresnel)

  • Antonin Moreau

    (Institut Fresnel)

  • Arnaud Fernandez

    (Université de Toulouse)

  • Olivier Llopis

    (Université de Toulouse)

  • Germain Bourcier

    (Université de Toulouse
    CNES)

  • Auro M. Perego

    (Aston University)

  • Matteo Conforti

    (UMR 8523 PhLAM Physique des Lasers Atomes et Molecules)

  • Arnaud Mussot

    (UMR 8523 PhLAM Physique des Lasers Atomes et Molecules
    Institut Universitaire de France (IUF))

Abstract

We report the generation of a stable, broadband frequency comb, covering more than 10 THz, using a dispersion fiber Fabry-Perot resonator with a high quality factor of 69 millions. This platform ensures robust and easy integration into photonic devices via FC/PC connectors, and feature quality factors comparable to those of microresonators. We demonstrate a passive mode-locking phenomenon induced by the coherent interaction of the Kerr effect and Brillouin scattering, which generates a frequency comb with a repetition rate exceeding the free spectral range of the cavity. This parametric process modulates the continuous wave (CW) pump and can then be transformed into a train of almost square-wave pulses thanks to the generation of switching waves. Our results are supported by advanced numerical simulations, and theoretical derivations that include the Brillouin effect in the Fabry-Perot configuration. The very high stable feature of this optical frequency comb lying in the GHz range is critical to several applications ranging from telecommunication, spectroscopy and advanced microwave generation.

Suggested Citation

  • Thomas Bunel & Julien Lumeau & Antonin Moreau & Arnaud Fernandez & Olivier Llopis & Germain Bourcier & Auro M. Perego & Matteo Conforti & Arnaud Mussot, 2025. "Brillouin-induced Kerr frequency comb in normal dispersion fiber Fabry Perot resonators," Nature Communications, Nature, vol. 16(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-60261-y
    DOI: 10.1038/s41467-025-60261-y
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    References listed on IDEAS

    as
    1. Miles H. Anderson & Wenle Weng & Grigory Lihachev & Alexey Tikan & Junqiu Liu & Tobias J. Kippenberg, 2022. "Zero dispersion Kerr solitons in optical microresonators," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Su-Peng Yu & Erwan Lucas & Jizhao Zang & Scott B. Papp, 2022. "A continuum of bright and dark-pulse states in a photonic-crystal resonator," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. Johann Riemensberger & Anton Lukashchuk & Maxim Karpov & Wenle Weng & Erwan Lucas & Junqiu Liu & Tobias J. Kippenberg, 2020. "Massively parallel coherent laser ranging using a soliton microcomb," Nature, Nature, vol. 581(7807), pages 164-170, May.
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