Shi Jia-Chen, Ji Qing-Xin, Cao Qi-Tao, Yu Yan, Liu Wenjing, Gong Qihuang, Xiao Yun-Feng
State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China.
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China.
Phys Rev Lett. 2022 Feb 18;128(7):073901. doi: 10.1103/PhysRevLett.128.073901.
Kerr soliton microcombs 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.
微谐振器中的克尔孤子微梳一直是一种突出的小型化相干光源。在此，我们首次证明了光机械微谐振器中克尔孤子的存在，为此通过纳入单个机械模式和多个光学模式建立了一个非线性模型。有趣的是，发现了一种奇特的振动克尔孤子态，它由一个自持机械振荡调制。此外，孤子通过光弹簧效应提供额外的机械增益，并导致在泵浦失谐时产生声子激光。还观察到了各种非线性动力学，包括极限环、更高周期性和瞬态混沌。这项工作不仅为探索多体非线性相互作用提供了指导，还通过兼具频率梳和光机械学的优势促进了精密测量。
