目前微环产生光频梳的理论分析方法主要有两种：非线性耦合模理论和非线性Lugiato-Lefever方程 （LLE）模型。这些理论研究一般只考虑了色散和光学非线性效应, 忽略了强抽运光作用下微环谐振腔中热效应的影响。通过对微环热效应的分析, 在非线性LLE的基础上加入热效应作用的相移对方程进行修正, 仿真了固定和调节初失谐量两种情况下耗散腔光孤子/光频梳在微环谐振腔内产生的整个过程, 分析了两种不同方式产生克尔光频梳的机理, 并对比分析了两种方式下克尔光频梳的性能和造成性能差异的原因。

At present, two theoretical analysis methods, nonlinear coupled-mode theory and nonlinear Lugiato-Lefever equation (LLE) model, are used to investigate the generation of Kerr optical frequency comb in micro-ring resonators. In previous theoretical studies, only dispersion and optical nonlinear effects were generally considered, and the thermal effects in micro-ring resonators under strong pumping were ignored. In this paper, in view of the thermal effect in the micro-ring resonator induced by the traveling light beam, the nonlinear LLE is modified, and based on the modified equation, the generation of Kerr optical frequency comb is investigated for the two cases of fixing and adjusting the initial detuning. Generation mechanisms of the Kerr optical frequency comb based on these two different ways are analyzed. The characteristics of the Kerr optical frequency comb generated by the two ways are compared, and the reason that causes their difference is investigated.