Thermo-optical spiking and mixed-mode oscillations in injected Kerr microcavities

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Dettagli Bibliografici
Pubblicato in:	arXiv.org (Dec 3, 2024), p. n/a
Autore principale:	Koch, Elias R
Altri autori:	Javaloyes, Julien, Gurevich, Svetlana V
Pubblicazione:	Cornell University Library, arXiv.org
Soggetti:	Excitation spectra Control theory Thermal relaxation Nonlinear optics Optical pulses Feedback loops Microcavities Refractivity Nonlinear systems Dynamical systems Nonlinear control Oscillations Nonlinear dynamics Temperature effects
Accesso online:	Citation/Abstract Full text outside of ProQuest
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Descrizione
Abstract:	We investigate the nonlinear dynamics of vertically emitting Kerr microcavities under detuned optical injection, considering the impact of slow thermal effects. Our model integrates thermal detuning caused by refractive index shifts due to heating. Through numerical and analytical approaches, we uncover a rich spectrum of dynamical behaviors, including excitable thermo-optical pulses, mixed-mode oscillations, and chaotic spiking, governed by a higher-dimensional canard scenario. Introducing a long external feedback loop with time delays comparable to the microcavity photon lifetime but shorter than thermal relaxation timescales, reveals how delay affects excitability and stabilizes temporal localized states. Our findings extend the understanding of excitable systems, demonstrating how thermal and feedback mechanisms interplay to shape nonlinear optical dynamics. Further, our approach paves the way for the study of cavity stabilization and cavity cooling using an additional control beam.
ISSN:	2331-8422
Fonte:	Engineering Database