2021/09/29 by Jia-Chen Shi, Qing-Xin Ji, Qi-Tao Cao +4
Physics and Astronomy · #Advanced Fiber Laser Technologies #Kerr effect #Kerr nonlinearity #Lasing threshold #Mechanical and Optical Resonators #Nonlinear Photonic Systems #Nonlinear optics #Nonlinear system #Phonon #Resonator #Soliton #Transient (computer programming) #physics.optics
paper · pdf · doi:10.1103/physrevlett.128.073901
arxiv created 2021/09/29 · openalex created_date 2021/10/11 · openalex publication_date 2022/02/18 · arxiv updated 2022/03/02 · openalex updated_date 2026/08/05
Soliton microcombs based on Kerr nonlinearity in microresonators have been a prominent miniaturized coherent light source. Here, for the first time, we demonstrate the existence of Kerr solitons in an optomechanical microresonator, for which a nonlinear model is built by incorporating a single mechanical mode and multiple optical modes. Interestingly, an exotic vibrational Kerr soliton state is found, which is modulated by a self-sustained mechanical oscillation. Besides, the soliton provides extra mechanical gain through the optical spring effect, and results in phonon lasing with a red-detuned pump. Various nonlinear dynamics is also observed, including limit cycle, higher periodicity, and transient chaos. This work provides a guidance for not only exploring many-body nonlinear interactions, but also promoting precision measurements by featuring superiority of both frequency combs and optomechanics.