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分别用逆散射微扰方法和傅里叶变换求系综平均观点详细分析了在光孤子放大过程中，如果设法使放大器增益随孤子频率变化而变化，在一定条件下，既可大大减弱光孤子脉冲的喇曼自泵效应引起的自频移现象，又可有效地控制放大过程中产生的自发辐射噪声（ＡＳＥ）．结果表明，在两种特性的动态增益中，可有效地控制ＡＳＥ噪声从而突破Ｇｏｒｄｏｎ－Ｈａｕｓ限制，也可使自频移明显减弱，并与计算机数值研究结果作了比较。
Using the method of inverse scattering perturbation and the Fourier transform to find the ensemble average viewpoint, we analyzed in detail how to reduce the gain of the amplifier with the change of the soliton frequency when the optical soliton is enlarging. Under certain conditions, the optical soliton The Raman self-pumping pulse self-pumping effect caused by the self-frequency shift phenomenon, but also can effectively control the amplification process of spontaneous emission noise (ASE). The results show that the ASE noise can be effectively controlled to break the Gordon-Haus limit, and the self-frequency shift can be obviously weakened in the dynamic gain of the two characteristics. The results are compared with the computer numerical results.