Microring resonator based frequency comb sources for compact continuous-wave THz generators

We discuss the possibilities of microring resonator based frequency comb sources for applications to THz-wave generation. Numerical simulations were performed using the Lugiato-Lefever model, combined with fully vectorial modal analyses, to investigate how the cavity design impacts the coherence properties of the combs and to quantitatively estimate the power conversion efficiency from the pump to the combs. Achievable THz powers for given frequency ranges are estimated.