Temporal cavity solitons, or dissipative Kerr solitons (DKSs) in integrated microresonators, are essential for deployable metrology technologies.Such applications favor the lowest noise state, typically the single-DKS state where one soliton is in the resonator.Other multi-DKS states can also be reached, offering better conversion efficiency and thermal stability, potentially simplifying DKS-based technologies.Yet they exhibit more noise lightning to usb apple due to relative soliton jitter and are usually not compatible with targeted applications.
We demonstrate that Kerr-induced synchronization, an all-optical trapping technique, can azimuthally pin steely dan gaucho t-shirt the multi-DKS state to a common reference field.This method ensures repetition rate noise is independent of the number of solitons, making a multi-DKS state indistinguishable from a single-DKS state in that regard, akin to trapped-soliton molecule behavior.Supported by theoretical analysis and experimental demonstration in an integrated microresonator, this approach provides metrological capacity regardless of the number of cavity solitons, benefiting numerous DKS-based metrology applications.