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Fully phase-stabilized quantum cascade laser frequency comb

Author

Listed:
  • Luigi Consolino

    (CNR-Istituto Nazionale di Ottica and LENS, Via N. Carrara 1)

  • Malik Nafa

    (CNR-Istituto Nazionale di Ottica and LENS, Via N. Carrara 1)

  • Francesco Cappelli

    (CNR-Istituto Nazionale di Ottica and LENS, Via N. Carrara 1)

  • Katia Garrasi

    (NEST, CNR—Istituto Nanoscienze and Scuola Normale Superiore, Piazza S. Silvestro 12)

  • Francesco P. Mezzapesa

    (NEST, CNR—Istituto Nanoscienze and Scuola Normale Superiore, Piazza S. Silvestro 12)

  • Lianhe Li

    (University of Leeds)

  • A. Giles Davies

    (University of Leeds)

  • Edmund H. Linfield

    (University of Leeds)

  • Miriam S. Vitiello

    (NEST, CNR—Istituto Nanoscienze and Scuola Normale Superiore, Piazza S. Silvestro 12)

  • Paolo De Natale

    (CNR-Istituto Nazionale di Ottica and LENS, Via N. Carrara 1)

  • Saverio Bartalini

    (CNR-Istituto Nazionale di Ottica and LENS, Via N. Carrara 1
    ppqSense Srl, Via Gattinella 20)

Abstract

Miniaturized frequency comb sources across hard-to-access spectral regions, i.e. mid- and far-infrared, have long been sought. Four-wave-mixing based Quantum Cascade Laser combs (QCL-combs) are ideal candidates, in this respect, due to the unique possibility to tailor their spectral emission by proper nanoscale design of the quantum wells. We demonstrate full-phase-stabilization of a QCL-comb against the primary frequency standard, proving independent and simultaneous control of the two comb degrees of freedom (modes spacing and frequency offset) at a metrological level. Each emitted mode exhibits a sub-Hz relative frequency stability, while a correlation analysis on the modal phases confirms the high degree of coherence in the device emission, over different power-cycles and over different days. The achievement of fully controlled, phase-stabilized QCL-comb emitters proves that this technology is mature for metrological-grade uses, as well as for an increasing number of scientific and technological applications.

Suggested Citation

  • Luigi Consolino & Malik Nafa & Francesco Cappelli & Katia Garrasi & Francesco P. Mezzapesa & Lianhe Li & A. Giles Davies & Edmund H. Linfield & Miriam S. Vitiello & Paolo De Natale & Saverio Bartalini, 2019. "Fully phase-stabilized quantum cascade laser frequency comb," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10913-7
    DOI: 10.1038/s41467-019-10913-7
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