Near-visible integrated soliton microcombs with detectable repetition rates
Integrated soliton microcombs benefit a wide range of conventional comb applications through their compactness and scalability. And applications such as optical clocks and biosensing have driven interest in their operation at wavelengths approaching the visible band. However, increasing normal dispersion and optical loss at shorter wavelengths make short pulse operation at low pumping power challenging, especially for detectable-rate microcombs. Here, low-pump-power, detectable-rate soliton microcombs are demonstrated from telecom to visible bands using ultra-low-loss silicon nitride waveguides. Wavelength-multiplexed operation spanning 2/3 octave is also demonstrated in a single device. The results fill a gap needed for realization of integrated self-referenced visible microcombs.
Authors
- Kerry J. Vahala (ORCID: https://orcid.org/0000-0003-1783-1380)
- Joel Guo (ORCID: https://orcid.org/0000-0003-0203-5170)
- Maodong Gao (ORCID: https://orcid.org/0000-0002-7791-0008)
- Warren Jin (ORCID: https://orcid.org/0000-0002-4297-7982)
- Mario Paniccia (ORCID: https://orcid.org/0009-0009-5006-3871)
- Qing-Xin Ji (ORCID: https://orcid.org/0000-0002-6336-8350)
- Avi Feshali (ORCID: https://orcid.org/0000-0002-6991-8392)
- Jinyu Liu (ORCID: https://orcid.org/0000-0003-0233-3493)
- Peng Liu (ORCID: https://orcid.org/0009-0002-1270-3240)
- Mingxiao Li (ORCID: https://orcid.org/0000-0003-4951-6887)
- Jinhao Ge
- John E. Bowers (ORCID: https://orcid.org/0000-0003-4270-8296)
- Yan Yu (ORCID: https://orcid.org/0000-0002-6386-6405)
Institutions
- California Institute of Technology (US)
- University of California, Santa Barbara (US)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1038/s41467-025-60157-x
- Citations
- 5
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 6.23
Funders
- National Science Foundation
- Air Force Office of Scientific Research