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OPTICAL FREQUENCY COMBS

Kerr combs bring purity to millimetre waves

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A chip-based optical frequency comb has enabled the realization of a 300 GHz signal with record low phase noise. The development could yield ultra-compact, ultra-low-noise sources for millimetre-wave applications in telecommunications, remote sensing and precision spectroscopy.

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Fig. 1: Simplified schematic of the experiment presented by Tetsumoto and colleagues.

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Authors and Affiliations

  1. LNE-SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Paris, France

    Yann Le Coq

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  1. Yann Le Coq
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Correspondence to Yann Le Coq.

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The author declares no competing interests.

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Le Coq, Y. Kerr combs bring purity to millimetre waves. Nat. Photon. 15, 487–488 (2021). https://doi.org/10.1038/s41566-021-00838-3

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  • DOI: https://doi.org/10.1038/s41566-021-00838-3

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