Soliton Microcombs Multiplexing Using Intracavity-Stimulated Brillouin Lasers
Creators
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1.
University of Electronic Science and Technology of China
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2.
Peking University
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3.
California Institute of Technology
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4.
University of California, Los Angeles
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5.
China Academy of Engineering Physics
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6.
Zhejiang Lab
Abstract
Solitons in microresonators have spurred intriguing nonlinear optical physics and photonic applications. Here, by combining Kerr and Brillouin nonlinearities in an over-modal microcavity, we demonstrate spatial multiplexing of soliton microcombs under a single external laser pumping operation. This demonstration offers an ideal scheme to realize highly coherent dual-comb sources in a compact, low-cost and energy-efficient manner, with uniquely low beating noise. Moreover, by selecting the dual-comb modes, the repetition rate difference of a dual-comb pair could be flexibly switched, ranging from 8.5 to 212 MHz. Beyond dual-comb, the high-density mode geometry allows the cascaded Brillouin lasers, driving the co-generation of up to 5 space-multiplexing frequency combs in distinct mode families. This Letter offers a novel physics paradigm for comb interferometry and provides a widely appropriate tool for versatile applications such as comb metrology, spectroscopy, and ranging.
Copyright and License
© 2023 American Physical Society.
Acknowledgement
We thank technical supports from Professor Qi-Fan Yang and Dr. Qi-Tao Cao at Peking University. We acknowledge financial support from the National Key Research and Development Program of China (2021YFB2800602), the National Natural Science Foundation of China (61975025, U2130106, 11825402, 11904339, and 12293051), the State Key laboratory (2022GZKF002), and the National Postdoctoral Innovation Talent Support Program of China (BX20220056).
Contributions
H. Z., T. T., H.-J. C., Y. Y., and W. W. contributed equally to this work. B. Y. and Y.-F. X. led this study. H. Z., T. T., and W. W. contributed the experimental investigations, Y. Y. and H.-J. C. contributed the theoretical analysis. B. C., Y. L., Y. G., and H. X. built the experimental setup and fabricated the devices. All authors processed and analyzed the results. B. Y., Y. R., Y.-F. X., H.-J. C., and C. W. prepared the manuscript.
Data Availability
The supplementary materials are uploaded in the form of an attach additional file.
Files
PhysRevLett.130.153802.pdf
Additional details
Identifiers
- ISSN
- 1079-7114
Funding
- National Key Research and Development Program of China
- 2021YFB2800602
- National Natural Science Foundation of China
- 61975025
- National Natural Science Foundation of China
- U2130106
- National Natural Science Foundation of China
- 11825402
- National Natural Science Foundation of China
- 11904339
- National Natural Science Foundation of China
- 12293051
- China Postdoctoral Science Foundation
- BX20220056
- State Key laboratory
- 2022GZKF002