Communications Physics (Dec 2022)
Giant injection-locking bandwidth of a self-pulsing limit-cycle in an optomechanical cavity
Abstract
Locking of oscillators to ultra-stable external sources is of paramount importance for improving close-to-carrier phase noise in free running oscillators. Here, the authors demonstrate a giant phase-locking bandwidth exceeding 60% of the natural frequency of the oscillator, which greatly overcomes other approaches exploiting external locking.