Bright-soliton frequency combs and dressed states in x2 microresonators

Puzyrev, D. N., Pankratov, V. V., Villois, A. and Skryabin, D. V. (2021) Bright-soliton frequency combs and dressed states in x2 microresonators. Physical Review A, 104 (1). ISSN 2469-9926

Microsoft Word (Villois_Bright-soliton_rba01-10-02-2026-125028) - Published Version Available under License Creative Commons Attribution. Download (5MB)

Abstract

We present a theory of frequency comb generation in high-Q ring microresonators with quadratic nonlinearity and normal dispersion and demonstrate that the naturally large difference of the repetition rates at the fundamental and second-harmonic frequencies supports a family of bright soliton frequency combs provided the parametric gain is moderated by tuning the index-matching parameter to exceed the repetition rate difference by a significant factor. This factor equals the sideband number associated with the high-order phase-matched sum-frequency process. The theoretical framework, i.e., the dressed-resonator method, to study the frequency conversion and comb generation is formulated by including the sum-frequency nonlinearity into the definition of the resonator spectrum. The Rabi splitting of the dressed frequencies leads to four distinct parametric down conversion conditions (signal-idler-pump photon energy conservation laws). The parametric instability tongues associated with the generation of the sparse, i.e., Turing-pattern-like, frequency combs with varying repetition rates are analyzed in detail. The sum-frequency matched sideband exhibits optical Pockels nonlinearity and strongly modified dispersion, which limit the soliton bandwidth and also play a distinct role in Turing comb generation. Our methodology and data highlight the analogy between the driven multimode resonators and the photon-atom interaction.

Item Type:	Article
Uncontrolled Keywords:	solitons,dispersions,interferometry,phase matching,photons,resonators,atomic and molecular physics, and optics,sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/3100/3107
Faculty \ School:	Faculty of Science > School of Engineering, Mathematics and Physics
UEA Research Groups:	Faculty of Science > Research Groups > Quantum Matter Faculty of Science > Research Groups > Fluids & Structures
Related URLs:	http://www.scopus.com/inward/record.url?...
Depositing User:	LivePure Connector
Date Deposited:	10 Feb 2026 12:37
Last Modified:	16 Feb 2026 01:28
URI:	https://ueaeprints.uea.ac.uk/id/eprint/101889
DOI:	10.1103/PhysRevA.104.013520

Downloads

Actions (login required)

View Item