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arXiv · 1908.04688

Frequency combs in a microring optical parametric oscillator

Alberto Villois·Nikita M. Kondratiev·Ingo Breunig·Danila N. Puzyrev·Dmitry V. Skryabin
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Abstract

We report the soliton frequency comb generation in microring optical parametric oscillators operating in the down-conversion regime and with the simultaneous presence of the $χ^{(2)}$ and Kerr nonlinearities. The combs are studied considering a typical geometry of a bulk LiNbO$_3$ toroidal resonator with the normal group velocity dispersion spanning an interval between the pump and the down-converted signal. We have identified critical power signaling a transition between the relatively low pump power predominantly $χ^{(2)}$ combs and the high pump power ones shaped by the competition between the $χ^{(2)}$ and Kerr nonlinearities.

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Alberto Villois, Nikita M. Kondratiev, Ingo Breunig, Danila N. Puzyrev, Dmitry V. Skryabin. 2019-08-13. Frequency combs in a microring optical parametric oscillator. https://doi.org/10.1364/ol.44.004443

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