标题： 非绝热调制光子腔中动态输入隔离的实验演示 显示英文标题

标题： Experimental demonstration of dynamical input isolation in nonadiabatically modulated photonic cavities

摘要： 调制光学腔体已被提出并用于通信、激光频率稳定、微波到光波转换和频梳生成等应用。 然而，大多数研究仅限于绝热 regime，在此 regime 中，调制的最大偏移量或调制频率本身低于腔体的线宽。 在这里，我们使用嵌入电光相位调制器的光纤环形谐振腔，研究非绝热 regime。 通过在远低于环形谐振腔自由光谱范围但远高于谐振腔线宽的频率下强烈驱动调制器，我们实验观察到了最近由 Minkov 等人提出的理论研究中预测的反直觉行为 [APL Photonics 2, 076101 (2017)]，例如当输入激光波长与光学腔共振时，drop-port 传输的完全抑制。 这可以理解为腔体与输入光的动态隔离。 我们还展示了在绝热和非绝热极限之间系统稳态响应的定性差异。 我们的实验探索了一个很少被研究的操作 regime，这对于当前最先进的技术在集成光子系统中的应用具有前景。 显示英文摘要

摘要： Modulated optical cavities have been proposed and demonstrated for applications in communications, laser frequency stabilization, microwave-to-optical conversion and frequency comb generation. However, most studies are restricted to the adiabatic regime, where either the maximum excursion of the modulation or the modulation frequency itself is below the linewidth of the cavity. Here, using a fiber ring resonator with an embedded electro-optic phase modulator, we investigate the nonadiabatic regime. By strongly driving the modulator at frequencies that are significantly smaller than the free-spectral range of the ring resonator, but well beyond the linewidth of the resonator, we experimentally observe counterintuitive behavior predicted in a recent theoretical study by Minkov et al. [APL Photonics 2, 076101 (2017)], such as the complete suppression of drop-port transmission even when the input laser wavelength is on resonance with the optical cavity. This can be understood as dynamical isolation of the cavity from the input light. We also show qualitative differences in the steady-state responses of the system between the adiabatic and nonadiabatic limits. Our experiments probe a seldom explored regime of operation that is promising for applications in integrated photonic systems with current state-of-the-art technology.