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Dark-Bright Soliton Bound States in a Microresonator

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Zhang,  Shuangyou
Del'Haye Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Bi,  Toby
Del'Haye Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich Alexander University Erlangen-Nuremberg;

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Ghalanos,  George N.
Del'Haye Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Blackett Laboratory, Imperial College London;

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Del Bino,  Leonardo
Del'Haye Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Del'Haye,  Pascal
Del'Haye Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich Alexander University Erlangen-Nuremberg;

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2104.13351.pdf
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Citation

Zhang, S., Bi, T., Ghalanos, G. N., Moroney, N. P., Del Bino, L., & Del'Haye, P. (2021). Dark-Bright Soliton Bound States in a Microresonator. arXiv: 2104.13351v1.


Cite as: https://hdl.handle.net/21.11116/0000-0009-664B-1
Abstract
The recent discovery of dissipative Kerr solitons in microresonators has facilitated the development of fully coherent, chip-scale frequency combs. In addition, dark soliton pulses have been observed in microresonators in the normal dispersion regime. Here, we report bound states of mutually trapped dark-bright soliton pairs in a microresonator. The soliton pairs are generated seeding two modes with opposite dispersion but with similar group velocities. One laser operating in the anomalous dispersion regime generates a bright soliton microcomb, while the other laser in the normal dispersion regime creates a dark soliton via Kerr-induced cross-phase modulation with the bright soliton. Numerical simulations agree well with experimental results and reveal a novel mechanism to generate dark soliton pulses. The trapping of dark and bright solitons can lead to light states with the intriguing property of constant output power while spectrally resembling a frequency comb. These results can be of interest for telecommunication systems, frequency comb applications, ultrafast optics and soliton states in atomic physics.