On-Chip Parametric Synchronization of a Dissipative Kerr Soliton Microcomb

TL;DR

This paper demonstrates the first experimental and theoretical realization of parametric synchronization in a dissipative Kerr soliton microcomb, enabling flexible optical stabilization through parametric interactions.

Contribution

It introduces a novel method for synchronizing soliton frequency combs using parametric interactions, expanding control techniques in integrated photonics.

Findings

First demonstration of parametric synchronization in Kerr soliton microcombs

Entrainment of comb repetition rate via auxiliary lasers

Potential for optical stabilization and metrology applications

Abstract

Synchronization of oscillators is ubiquitous in nature. Often, the synchronized oscillators couple directly, yet in some cases synchronization can arise from their parametric interactions. Here, we theoretically predict and experimentally demonstrate the parametric synchronization of a dissipative Kerr soliton frequency comb. We specifically show that the parametric interaction between the soliton and two auxiliary lasers permits the entrainment of the frequency comb repetition rate. Besides representing the first prediction and demonstration of parametric synchronization of soliton frequency combs, our scheme offers significant flexibility for all-optical metrological-scale stabilization of the comb.