Abstract
Switching waves (SWs) are fronts that connect two homogeneous stable states of a multistable system [1]. An isolated SW typically propagates until the most stable state completely invades the other and can only be stationary at the so-called Maxwell point, where the two states have the same marginal stability. Close to the Maxwell point, it may still be possible however for two SWs to form a stable stationary structure provided the SWs have oscillatory tails through which they interlock [2]. In the normal dispersion regime of coherently driven passive resonators, such structures are known to correspond to dark pulse Kerr frequency combs [3] as observed recently in microresonators [4]. Note that the observations reported in [4] only correspond to the stationary structures: the small physical size of microresonators prevents quantitative study of the transient dynamics. As a result, no experimental evidence of the dynamical propagation and locking of SWs has been reported yet.
© 2017 IEEE
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