Brillouin-Kerr Soliton Frequency Combs in an Optical Microresonator
- 10 February 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 126 (6), 063901
- https://doi.org/10.1103/physrevlett.126.063901
Abstract
By generating a Brillouin laser in an optical microresonator, we realize a soliton Kerr microcomb through exciting the Kerr frequency comb using the generated Brillouin laser in the same cavity. The intracavity Brillouin laser pumping scheme enables us to access the soliton states with a blue-detuned input pump. Because of the ultranarrow linewidth and the low-noise properties of the generated Brillouin laser, the observed soliton microcomb exhibits narrow-linewidth comb lines and stable repetition rate. Also, we demonstrate a low-noise microwave signal with phase noise of at 10 Hz, at 10 kHz, and at 1 MHz offsets for a 10.43 GHz carrier with only a free-running input pump. The easy operation of the Brillouin-Kerr soliton microcomb with excellent performance makes our scheme promising for practical applications.
Keywords
Funding Information
- National Natural Science Foundation of China (61922040, 11621091)
- National Key R&D Program of China (2017YFA0303703, 2016YFA0302500)
- Guangdong Major Project of Basic and Applied Basic Research (2020B0301030009)
- Fundamental Research Funds (021314380170)
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