Self-regulating soliton domain walls in microresonators
arXiv:2103.10422 · doi:10.1103/PhysRevA.106.053508
Abstract
Dissipative soliton Kerr frequency combs in microresonators have recently been demonstrated with the self-injection locking process. They have the advantage of turnkey deterministic comb generation and simplifying dark soliton generation in the normal dispersion regime. Here, the formation process of dark pulses triggered by self-injection locking is studied by regarding them as a pair of domain walls that connect domains having different intracavity powers. The self-injection locking mechanism allows the domain walls to self-regulate their position so that a wide range of dark comb states can be accessed, and the duty cycle is controlled by the feedback phase. Direct imaging of the dark pulse shape using the electro-optic sampling technique is used to verify the theory. The results provide new physical insights as well as a new operational modality for this important class of nonlinear waves.
20 pages, 10 figures
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Cited by in corpus (5)
- Recent Advances in Laser Self-Injection Locking to High- Microresonators
- Impact of Stimulated Raman Scattering on Dark Soliton Generation in a Silica Microresonator
- Universal Kerr-thermal dynamics of self-injection-locked microresonator dark pulses
- Self-injection locking dynamics with Raman actions in AlN microresonators
- Hybrid patterns and solitonic frequency combs in non-Hermitian Kerr Cavities