论文标题
具有光学参数放大器和连贯反馈的光力学系统中的正常模式分裂
Normal-mode splitting in the optomechanical system with an optical parametric amplifier and coherent feedback
论文作者
论文摘要
光力学系统中的强耦合是观察许多量子现象的基本条件，例如光学机械挤压和纠缠。正常模式分裂（NMS）是强耦合系统的最明显签名。在这里，我们显示了可移动镜的光谱中的NMS，并且可以通过光学参数放大器（OPA）和相干反馈（CF）的组合来灵活地设计光学机械系统中的输出场。此外，可以通过优化参数（例如输入光学功率，OPA增益和相位，CF强度）来增强NMS。
Strong coupling in optomechanical systems is the basic condition for observing many quantum phenomena such as optomechanical squeezing and entanglement. Normal-mode splitting (NMS) is the most evident signature of strong coupling systems. Here we show the NMS in the spectra of the movable mirror and the output field in an optomechanical system can be flexibly engineered by a combination of optical parametric amplifier (OPA) and coherent feedback (CF). Moreover, the NMS could be enhanced by optimizing the parameters such as input optical power, OPA gain and phase, CF strength in terms of amplitude reflectivity of beam splitter.
