二次耦合对腔光振子的自治振荡调制
发布时间：2018-09-17 08:49
【摘要】：基于纳米机械谐振器的光腔交叉耦合模型,研究了光力二次耦合对光振子自治振荡的动态控制。针对之前工作仅局限于线性耦合过程,引入大位移情形下不可忽略二次耦合,研究了其对微振子动力学的影响。理论分析发现二次耦合的腔光力学系统具有参数振子效应,不但使振子更容易达到自治振荡,而且会诱发许多新的非线性动力学行为。在周期调制的光场驱动下,对绝热近似振子而言,二次耦合调控系统出现共振混沌行为;对全方程耦合系统而言,负的二次耦合能有效地降低能量共振频率,加强能量共振峰,在相同的参数条件下负的二次耦合使共振条件下极限环的面积扩大,预示着二次耦合可以有效控制振子能量的共振吸收。
[Abstract]:Based on the optical cavity cross-coupling model of the nano-mechanical resonator, the dynamic control of the self-governing oscillation of the optical oscillator by the second-order coupling of the optical force is studied. In view of the fact that the previous work was confined to the linear coupling process and the quadratic coupling could not be ignored in the case of large displacement, the effect of the coupling on the dynamics of the micro-oscillator was studied. Theoretical analysis shows that the second-order coupling cavity optomechanical system has parametric oscillator effect, which not only makes it easier for the oscillator to achieve autonomous oscillation, but also induces many new nonlinear dynamic behaviors. For the adiabatic approximate oscillator, the resonant chaotic behavior occurs in the quadratic coupling control system, and the negative quadratic coupling can effectively reduce the energy resonance frequency and strengthen the energy resonance peak for the whole equation coupled system. The area of limit cycle is enlarged by negative quadratic coupling under the same parameter condition, which indicates that the quadratic coupling can effectively control the resonance absorption of oscillator energy.
【作者单位】： 陕西师范大学物理学与信息技术学院;
【基金】：国家自然科学基金(11447025)
【分类号】：O431
本文编号：2245345
[Abstract]:Based on the optical cavity cross-coupling model of the nano-mechanical resonator, the dynamic control of the self-governing oscillation of the optical oscillator by the second-order coupling of the optical force is studied. In view of the fact that the previous work was confined to the linear coupling process and the quadratic coupling could not be ignored in the case of large displacement, the effect of the coupling on the dynamics of the micro-oscillator was studied. Theoretical analysis shows that the second-order coupling cavity optomechanical system has parametric oscillator effect, which not only makes it easier for the oscillator to achieve autonomous oscillation, but also induces many new nonlinear dynamic behaviors. For the adiabatic approximate oscillator, the resonant chaotic behavior occurs in the quadratic coupling control system, and the negative quadratic coupling can effectively reduce the energy resonance frequency and strengthen the energy resonance peak for the whole equation coupled system. The area of limit cycle is enlarged by negative quadratic coupling under the same parameter condition, which indicates that the quadratic coupling can effectively control the resonance absorption of oscillator energy.
【作者单位】： 陕西师范大学物理学与信息技术学院;
【基金】：国家自然科学基金(11447025)
【分类号】：O431
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