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arXiv · 2512.11581

Adiabatic and Deterministic Routes to Soliton Combs in Non-Hermitian Kerr Cavities

Salim B. Ivars·David Artigas·Carlos Mas Arabí·Carles Milián
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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 micro-resonators with normal group velocity dispersion. Our findings stem from the inclusion of a localised non-Hermitian potential, which we use to drastically reshape the characteristic collapsed snaking structure associated with such solitons. Consequently, we demonstrate a novel snaking-free bifurcation landscape where solitons of all possible widths are continuously connected via the dynamic change of the cavity detuning, and hence dissipative localised 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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Salim B. Ivars, David Artigas, Carlos Mas Arabí, Carles Milián. 2025-12-12. Adiabatic and Deterministic Routes to Soliton Combs in Non-Hermitian Kerr Cavities. https://arxiv.org/abs/2512.11581

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