Dispersive-wave-agile optical frequency division
The remarkable frequency stability of resonant systems in the optical domain (optical cavities and atomic transitions) can be harnessed at frequency scales accessible by electronics using optical frequency division. This capability is revolutionizing technologies spanning time keeping to high-performance electrical signal sources. A version of the technique called two-point optical frequency division (2P-OFD) is proving advantageous for application to high-performance signal sources. In 2P-OFD, an optical cavity anchors two spectral endpoints defined by lines of a frequency comb. The comb need not be self-referenced, which greatly simplifies the system architecture and reduces power requirements. Here, a 2P-OFD microwave signal source is demonstrated with record-low phase noise using a microcomb. Key to this advance is a spectral endpoint defined by a frequency-agile single-mode dispersive wave that is emitted by the microcomb soliton. Moreover, the system frequency reference is a compact all-solid-state optical cavity with a record <i>Q</i> factor. A hybridly packaged version of the system offers excellent longer term stability. The results advance integrable microcomb-based signal sources into the performance realm of much larger microwave sources.
Authors
- Kerry J. Vahala (ORCID: https://orcid.org/0000-0003-1783-1380)
- Joel Guo (ORCID: https://orcid.org/0000-0003-0203-5170)
- Warren Jin (ORCID: https://orcid.org/0000-0002-4297-7982)
- Mario Paniccia (ORCID: https://orcid.org/0009-0009-5006-3871)
- Anatoliy A. Savchenkov (ORCID: https://orcid.org/0000-0003-2045-2103)
- Qing-Xin Ji (ORCID: https://orcid.org/0000-0002-6336-8350)
- Wei Zhang (ORCID: https://orcid.org/0000-0003-2065-2535)
- Avi Feshali (ORCID: https://orcid.org/0000-0002-6991-8392)
- Shuman Sun
- Andrey B. Matsko (ORCID: https://orcid.org/0000-0001-9939-9311)
- Lue Wu (ORCID: https://orcid.org/0000-0002-7503-7057)
- Peng Liu (ORCID: https://orcid.org/0009-0002-1270-3240)
- John E. Bowers (ORCID: https://orcid.org/0000-0003-4270-8296)
- Jonathan Peters (ORCID: https://orcid.org/0000-0002-6156-6599)
- Vladimir Iltchenko (ORCID: https://orcid.org/0009-0002-3545-8700)
Institutions
- California Institute of Technology (US)
- Jet Propulsion Laboratory (US)
- University of California, Santa Barbara (US)
- Banpil Photonics (United States) (US)
Publication Details
- Journal
- Nature Photonics
- Published
- 2025-05-23
- DOI
- https://doi.org/10.1038/s41566-025-01667-4
- Citations
- 19
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 23.69
Funders
- National Aeronautics and Space Administration
- Kavli Foundation
- California Institute of Technology
- Nuclear Safety and Security Commission
- National Institute of Standards and Technology
- Defense Advanced Research Projects Agency
- Jet Propulsion Laboratory
- Advanced Research Projects Agency
- Intelligence Advanced Research Projects Activity
- Interior Business Center
- Kavli Nanoscience Institute, California Institute of Technology