Adiabatic and deterministic routes to soliton combs in non-Hermitian Kerr cavities
[EN] We present a cardinal solution for the long-standing and fundamental problem associated with the adiabatic, reversible, and controlled excitation of both dark and bright solitons in Kerr microresonators with normal group-velocity dispersion. Our findings stem from the inclusion of a localized n...
| Authors: | , , , |
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| Format: | article |
| Publication Date: | 2026 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:dnet:riunet______::1339ac4575c0261c958e311e7ad75354 |
| Online Access: | https://riunet.upv.es/handle/10251/233403 |
| Access Level: | Open access |
| Keyword: | Kerr microresonators Dissipative solitons Normal dispersion Non-Hermitian potentials Frequency comb generation Cavity detuning |
| Summary: | [EN] We present a cardinal solution for the long-standing and fundamental problem associated with the adiabatic, reversible, and controlled excitation of both dark and bright solitons in Kerr microresonators with normal group-velocity dispersion. Our findings stem from the inclusion of a localized non-Hermitian potential, which we use to drastically reshape the characteristic collapsed snaking structure associated with such solitons. Consequently, we demonstrate a snaking-free bifurcation landscape where solitons of all possible widths are continuously connected via the dynamic change of the cavity detuning, and hence dissipative localized states of unprecedentedly high pump-to-comb conversion efficiencies can be excited in an adiabatic, deterministic, and reversible fashion. Our fundamental discovery has practical implications of paramount importance for frequency comb generation in all-normal dispersion cavities, which are key to comb generation in most spectral regions away from the telecom bands. |
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