Origin and stability of dark pulse Kerr combs in normal dispersion resonators
Parra-Rivas, Pedro Gomila, Damia Knobloch, Edgar Coen, Stéphane Gelens, Lendert # ×
Optics Letters vol:41 issue:11 pages:2402-2405
We analyze dark pulse Kerr frequency combs in optical res- onators with normal group-velocity dispersion using the Lugiato−Lefever model. We show that in the time domain the combs correspond to interlocked switching waves be- tween the upper and lower homogeneous states, and explain how this fact accounts for many of their experimentally observed properties. Modulational instability does not play any role in their existence. We provide a detailed map indi- cating for which parameters stable dark pulse Kerr combs can be found, and how they are destabilized for increasing values of frequency detuning.