Abstract
We predict subharmonic entrainment of breather-soliton oscillations to a periodic perturbation at the round-trip time in Kerr-nonlinear optical resonators; an integer ratio results for breathing period . Rigid entrainment is observed with intermediate finesse () for up to 20, and we propose a way to realize higher entrainment ratios at higher finesse. This nontrivial synchronization across the widely separated timescales of the photon lifetime and round-trip time points to a new direction for research in this field and may find application, for example, in the measurement of a pulse train repetition rate that is electronically inaccessible.
- Received 25 July 2019
DOI:https://doi.org/10.1103/PhysRevLett.123.173904
Published by the American Physical Society