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We numerically investigate the influence of parametric seeding on the microresonator optical frequency comb in Turing pattern regime by using modified Lugiato-Lefever equation, and find it a powerful means of control of the comb state.
We propose a novel method to flexibly tune the optical frequency combs generated in normal-dispersion microresonators based on parametric seeding. The pulse duration could be adjusted in the range of 0.7–3.076 ps by changing the seeding power from 1 to 5 mW, and the repetition rate could increase $N$ times by setting the seeding frequency at $N$ times free spectral range away from the pump.
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