论文标题
基于微孔子的光学参数振荡器中的两色扁平孤子
Two-color flat-top solitons in microresonator-based optical parametric oscillators
论文作者
论文摘要
我们以数值方式研究了基于微孔子的双色齿状脉冲（platicons）的两种扁平词素脉冲脉冲的产生。我们透露，如果相互作用谐波在相互作用谐波上的组速度分散（GVD）系数的符号相反，则可以通过泵振幅调制或可控模式相互作用方法来激发Platicon激发。在泵频率扫描后，在正常GVD的正泵频率引导下，在泵频率下，在相反情况下在阴性引导下观察到Platicons的生成。有趣的是，在频率扫描时，我们发现平面platicon轮廓在半频到钟形的明亮的孤子轮廓的效果。对于Platicon激发，需要在相互作用的谐波和共振特征频率的情况下同时精确匹配微孔子的光谱范围。发现了针对不同生成方法的激发条件和platicon生成结构域，并研究了生成的platicons的性能，以进行培养基参数的各种组合。
We studied numerically the generation of the two-color flat-top solitonic pulses, platicons, in the microresonator based doubly resonant optical parametric oscillator. We revealed that if the signs of the group velocity dispersion (GVD) coefficients at interacting harmonics are opposite, platicon excitation is possible via pump amplitude modulation or controllable mode interaction approach. Upon pump frequency scan generation of platicons was observed at positive pump frequency detunings for the normal GVD at pump frequency and at negative detunings in the opposite case. Interestingly, we found the effect of the transformation of the flat-top platicon profile at half-frequency into the bell-shaped bright soliton profile upon frequency scan. For platicon excitation one needs simultaneous accurate matching of the microresonator free spectral ranges at interacting harmonics and resonant eigenfrequencies. Excitation conditions and platicon generation domains were found for the different generation methods, and properties of the generated platicons were studied for various combinations of the medium parameters.
