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We report a Si3N4 microresonator which simultaneously satisfies single-mode operation, high Q-factor and anomalous dispersion. With controlled high-speed pump-wavelength scanning, we successfully observe a smooth phase-locked Kerr frequency comb transition based on dissipative solitons.
Dipole and vector solitons in a two-dimensional photorefractive optical lattice are demonstrated both experimentally and theoretically. Dipole solitons can be in-phase or out-of-phase in their lobe components, and they are trapped in two nearby lattice sites and stabilized by the lattice-induced waveguide. Vector solitons are realized by mutual trapping of two mutually incoherent, beams in the same...
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