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我们在原有硅基微环谐振器四波混频模型的基础上提出了改进模型，考虑了相位调制效应引起的非线性相移。模拟结果表明非线性相移将引起泵浦光和信号光谐振波长的红移，且移动量不同，这将引起信号光谐振峰和波长转换峰值波长的差异。转换效率和转换峰宽度都会受到微环半径、耦合系数等参数的影响，在 Q 值较小的微环谐振腔中可以获得的转换峰较宽。“,”In this paper, A modified model for wavelength conversion based on four-wave mixing (FWM) in a silicon micro-ring resonator is presented. The nonlinear phase shifts caused by self-phase modulation and cross-phase modulation are also taken into account in the present theoretical analysis besides the linear propagation loss, the nonlinear losses caused by two-photon absorption and free-carrier absorption. Analysis shows that the nonlinear phase shifts will cause different red shifts for the pump and signal (or converted) resonant wavelengths, and consequently an additional wavelength difference between the signal transmission dip and the efficiency peak, which will increase/decrease the conversion efficiency of the signal channel far from/near the pump. The conversion efficiency and the conversion peak width of each signal channel are both affected by the micro-ring radius and coupling coefficient. A broader conversion peak width can be obtained by using a micro-ring resonator with a smaller Q factor.