Observation of Arnold Tongues in Coupled Soliton Kerr Frequency Combs
arXiv:1910.01103 · doi:10.1103/PhysRevLett.123.153901
Abstract
We demonstrate various regimes of synchronization in systems of two coupled cavity soliton-based Kerr frequency combs. We show sub-harmonic, harmonic and harmonic-ratio synchronization of coupled microresonators, and reveal their dynamics in the form of Arnold tongues, structures that are ubiquitous in nonlinear dynamical systems. Our experimental results are well corroborated by numerical simulations based on coupled Lugiato-Lefever equations. This study illustrates the newfound degree of flexibility in synchronizing Kerr combs across a wide range of comb spacings and could find applications in time and frequency metrology, spectroscopy, microwave photonics, optical communications, and astronomy.
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- Photonic Snake States in Two-Dimensional Frequency Combs
- Universal dynamics of spatiotemporal entrainment with phase symmetry
- Spatial heterogeneity may form an inverse camel shape Arnol'd tongue in parametrically forced oscillations