用于正交压缩态产生的有耗微腔系统的优化
Optimization of a Lossy Microring Resonator System for the Generation of Quadrature-Squeezed States
摘要：
有耗微波谐振腔中的光强积累可以通过自发参量下转换（SPDC）增强压缩态的产生。在这项工作中，我们模拟的压缩光的产生与高斯脉冲通过侧耦合通道波导泵浦的微谐振腔。我们从理论上确定了最佳的泵浦脉冲宽度和环到通道的耦合常数，以最小化正交噪声（最大化压缩）在环中为固定的输入泵浦能量。我们推导出近似的解析表达式的最佳耦合和泵浦脉冲宽度作为在环中的散射损耗的函数。这些结果将使研究人员能够容易地确定用于产生正交压缩态的微腔谐振器系统的最佳设计。
英文摘要：
The intensity buildup of light inside a lossy microring resonator can be used to enhance the generation of squeezed states via spontaneous parametric downconversion (SPDC). In this work, we model the generation of squeezed light in a microring resonator that is pumped with a Gaussian pulse via a side-coupled channel waveguide. We theoretically determine the optimum pump pulse duration and ring-to-channel coupling constant to minimize the quadrature noise (maximize the squeezing) in the ring for a fixed input pump energy. We derive approximate analytic expressions for the optimal coupling and pump pulse duration as a function of scattering loss in the ring. These results will enable researchers to easily determine the optimal design of microring resonator systems for the generation of quadrature-squeezed states.
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