Unifying frequency metrology across microwave, optical, and free-electron domains

Yujia Yang; Paolo Cattaneo; Arslan S. Raja; Bruce Weaver; Rui Ning Wang; Alexey Sapozhnik; Fabrizio Carbone; Thomas LaGrange; Tobias J. Kippenberg

doi:10.1038/s41467-025-62808-5

Unifying frequency metrology across microwave, optical, and free-electron domains

Yujia Yang, Paolo Cattaneo, Arslan S. Raja, Bruce Weaver, Rui Ning Wang, Alexey Sapozhnik, Fabrizio Carbone, Thomas LaGrange, Tobias J. Kippenberg

2025Nature Communications 16, 8369CC BY 4.0LCP000087

Fig. 2, panel (b-inset)

Inset of panel (b): microwave power spectrum (dBm) against frequency (MHz) with the optical phase-locked loop on (Locked), with the smoothed beatnote drawn as a black curve. The printed arrows marking the beatnote's 598 kHz 3-dB bandwidth are not drawn.

Files

Data: data.csv

Provenance

This panel was reproduced from the authors' public data deposit (Zenodo: https://doi.org/10.5281/zenodo.16600739, CC BY 4.0), with the smoothed beatnote recovered from the published vector figure. The plot shown here is re-rendered for interactive viewing and analysis. See the paper for the original figure and full scientific context.

License: CC BY 4.0.

Nat. Commun. 16, 8369 (2025) · DOI: 10.1038/s41467-025-62808-5 · arXiv: 2403.10486

Other panels of Fig. 2: (b) (c) (d) (d-inset)

All figures of this paper

All papers · About · Statistics · Submit data · API