Deterministic generation of Kerr soliton microcomb in coupled microresonators by a single shot pulsed trigger

Abstract

We demonstrate the generation of Kerr frequency combs with controllable intracavity soliton states by seeding the single continuous wave (CW) driven two coupled nonlinear microresonators with a pulsed trigger. The stable one-, two-, or three-soliton frequency comb can be realized deterministically simply by adjusting the pulse intensity of the trigger signal. Numerical simulations show that the generation of the mode-locked soliton frequency combs is robust without going through any instability or chaotic states. These results provide a means for the deterministic and controllable generation of optical Kerr frequency combs on integrated chips.