Turnkey photonic flywheel in a microresonator-filtered laser

Mingming Nie (), Jonathan Musgrave, Kunpeng Jia (), Jan Bartos, Shining Zhu, Zhenda Xie () and Shu-Wei Huang ()
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Mingming Nie: University of Colorado Boulder
Jonathan Musgrave: University of Colorado Boulder
Kunpeng Jia: Nanjing University
Jan Bartos: University of Colorado Boulder
Shining Zhu: Nanjing University
Zhenda Xie: Nanjing University
Shu-Wei Huang: University of Colorado Boulder

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Dissipative Kerr soliton (DKS) microcomb has emerged as an enabling technology that revolutionizes a wide range of applications in both basic science and technological innovation. Reliable turnkey operation with sub-optical-cycle and sub-femtosecond timing jitter is key to the success of many intriguing microcomb applications at the intersection of ultrafast optics and microwave electronics. Here we propose an approach and demonstrate the first turnkey Brillouin-DKS frequency comb to the best of our knowledge. Our microresonator-filtered laser design offers essential benefits, including phase insensitivity, self-healing capability, deterministic selection of the DKS state, and access to the ultralow noise comb state. The demonstrated turnkey Brillouin-DKS frequency comb achieves a fundamental comb linewidth of 100 mHz and DKS timing jitter of 1 femtosecond for averaging times up to 56 μs. The approach is universal and generalizable to various device platforms for user-friendly and field-deployable comb devices.

Date: 2024
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DOI: 10.1038/s41467-023-44314-8

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