Generation of hybrid frequency combs in Kerr cavities by non-Hermitian modulations

We show that the introduction of non-Hermitian modulations in a Kerr optical ring cavity induces a hybridisation of the two known formation mechanisms of solitonic solutions. This blends the properties of anomalous and normal dispersion regimes and allows the stabilisation of new families of frequency combs associated to stable solitons, molecules and patterns. The resultant new scenario greatly diversifies the possible generated frequency combs in Kerr cavities and can wide the application range of frequency combs.