Figure 6: Numerical simulation of the interleaved comb state in Fig. 2d–f.
From: Phase steps and resonator detuning measurements in microresonator frequency combs

(a–c) The simulation results are a linear combination of two stable solutions of the Lugiato–Lefever equation (with one solution being a comb with lines spaced by 15 × FSR, corresponding to the stronger modes in the spectrum).