• Open Access

Dark-Bright Soliton Bound States in a Microresonator

Shuangyou Zhang, Toby Bi, George N. Ghalanos, Niall P. Moroney, Leonardo Del Bino, and Pascal Del’Haye
Phys. Rev. Lett. 128, 033901 – Published 18 January 2022
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Abstract

Dissipative Kerr solitons in microresonators have 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, and ultrafast optics.

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  • Received 23 July 2021
  • Accepted 1 December 2021

DOI:https://doi.org/10.1103/PhysRevLett.128.033901

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalNonlinear DynamicsGeneral Physics

Authors & Affiliations

Shuangyou Zhang1, Toby Bi1,2, George N. Ghalanos1,3, Niall P. Moroney1,3, Leonardo Del Bino1, and Pascal Del’Haye1,2,*

  • 1Max Planck Institute for the Science of Light, 91058 Erlangen, Germany
  • 2Department of Physics, Friedrich Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
  • 3Blackett Laboratory, Imperial College London, SW7 2AZ London, United Kingdom

  • *pascal.delhaye@mpl.mpg.de

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Vol. 128, Iss. 3 — 21 January 2022

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