Work

Adiabatic and deterministic routes to soliton combs in non-Hermitian Kerr cavities

Year: 2025

Type: article

Abstract: 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.

Source: Physical Review Research

DOI: 10.1103/5zlv-2p96

Authors: Salim B. Ivars, David Artigas, Carlos Mas Arabí, Carles Milián

Institutions: Institute of Photonic Sciences, Universitat Politècnica de Catalunya, Universitat Politècnica de València

Language: English

Topic: Quantum Mechanics and Non-Hermitian Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: Ministerio de Economía y Competitividad, Agència de Gestió d'Ajuts Universitaris i de Recerca, Agencia Estatal de Investigación, Ministerio de Universidades