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Updated: Jul 1, 2026

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
Published on: December 15, 2021
Instabilities and solitons in systems with spatiotemporal dispersion
Fabio Biancalana1, Celestino Creatore
1School of Physics and Astronomy, Cardiff University, Queen's Buildings, The Parade, Cardiff, UK.
Abstract:
A simple model based on the 1D nonlinear Schrödinger equation is studied, which contains both spatially and temporally dispersive terms. Parametric instabilities for plane waves are analyzed in detail, and solitary waves (both bright and dark) are found. The model presented here is able to describe the non-trivial unstable dynamics of intense, nonlinear light propagation near a material resonance in presence of negative spatial dispersion. We provide as a practical example the light propagation near the tail of an exciton-polariton resonance in a specially designed semiconductor superlattice.
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