This paper computationally investigates the effect of the polarization decay rate ( γ ), and the peak resonance frequency ( f 0 ) on optical parametric amplification inside a low-loss micro resonator. It is found that, for lower values of the polarization decay rate and the peak resonance frequency, the magnitude of amplification can be significantly higher. However, it was also observed that beyond a certain threshold value of the polarization decay rate, the gain factor of the amplification sharply reduces to a negligible value. This suggests that the polarization decay rate of a material has a more profound effect on wave attenuation for the case of nonlinear wave propagation as compared to the case of linear wave propagation. This gain enhancing effect of the low polarization decay rate requires the resonator walls to be highly reflective. We found that below a certain value of the mean reflection coefficient of the resonator walls, the amplification bec...

中文翻译：

---

通过增益介质参数选择和平均腔壁反射率调整来增强微谐振器中的光学参量放大

本文通过计算研究了偏振衰减率（γ）和峰值谐振频率（f 0）对低损耗微谐振器内部光学参量放大的影响。已经发现，对于偏振衰减率和峰值共振频率的较低值，放大幅度可以明显更高。然而，还观察到，超过偏振衰减率的特定阈值，放大的增益因子急剧减小至可忽略的值。这表明，与线性波传播的情况相比，对于非线性波传播的情况，材料的极化衰减率对波衰减的影响更大。低极化衰减率的这种增益增强效果要求谐振器壁具有高反射率。