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Gain-through-filtering enables tuneable frequency comb generation in passive optical resonators

Author

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  • Florent Bessin

    (University of Lille, CNRS, UMR 8523-PhLAM Physique des Lasers Atomes et Molécules)

  • Auro M. Perego

    (Aston University)

  • Kestutis Staliunas

    (Institució Catalana de Recerca i Estudis Avançats
    Departament de Física, Universitat Politècnica de Catalunya)

  • Sergei K. Turitsyn

    (Aston University
    Novosibirsk State University)

  • Alexandre Kudlinski

    (University of Lille, CNRS, UMR 8523-PhLAM Physique des Lasers Atomes et Molécules)

  • Matteo Conforti

    (University of Lille, CNRS, UMR 8523-PhLAM Physique des Lasers Atomes et Molécules)

  • Arnaud Mussot

    (University of Lille, CNRS, UMR 8523-PhLAM Physique des Lasers Atomes et Molécules)

Abstract

Optical frequency combs (OFCs), consisting of a set of phase-locked, equally spaced laser frequency lines, have enabled a great leap in precision spectroscopy and metrology since seminal works of Hänsch et al. Nowadays, OFCs are cornerstones of a wealth of further applications ranging from chemistry and biology to astrophysics and including molecular fingerprinting and light detection and ranging (LIDAR) systems, among others. Driven passive optical resonators constitute the ideal platform for OFC generation in terms of compactness and low energy footprint. We propose here a technique for the generation of OFCs with a tuneable repetition rate in externally driven optical resonators based on the gain-through-filtering process, a simple and elegant method, due to asymmetric spectral filtering on one side of the pump wave. We demonstrate a proof-of-concept experimental result in a fibre resonator, pioneering a new technique that does not require specific engineering of the resonator dispersion to generate frequency-agile OFCs.

Suggested Citation

  • Florent Bessin & Auro M. Perego & Kestutis Staliunas & Sergei K. Turitsyn & Alexandre Kudlinski & Matteo Conforti & Arnaud Mussot, 2019. "Gain-through-filtering enables tuneable frequency comb generation in passive optical resonators," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12375-3
    DOI: 10.1038/s41467-019-12375-3
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