Matres Joaquin, Sorin Wayne V
Opt Express. 2017 Feb 20;25(4):3242-3251. doi: 10.1364/OE.25.003242.
Waveguide backscatter affects the resonance shape and quality factor (Q) of ring resonators. Our simple analytical expression predicts how waveguide backscatter spoils the Q and results in resonance splitting. We show that the effects of backscatter depend only on the finesse of the resonator and when it can safely be ignored. Finally, we describe the effects of backscatter in low-loss cavities using simple complex Lorentzian functions.
波导背向散射会影响环形谐振器的谐振形状和品质因数（Q）。我们的简单解析表达式预测了波导背向散射如何破坏品质因数并导致谐振分裂。我们表明，背向散射的影响仅取决于谐振器的精细度以及何时可以安全地忽略它。最后，我们使用简单的复洛伦兹函数描述了低损耗腔中背向散射的影响。
