Dark-Bright Soliton Bound States in a Microresonator
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.
Keywords
Cite
@article{arxiv.2104.13351,
title = {Dark-Bright Soliton Bound States in a Microresonator},
author = {Shuangyou Zhang and Toby Bi and George N. Ghalanos and Niall P. Moroney and Leonardo. Del Bino and Pascal Del'Haye},
journal= {arXiv preprint arXiv:2104.13351},
year = {2022}
}