对前置光电负反馈抑制钛宝石激光器强度噪声方法的特性进行了理论分析，表明注入噪声不同时对应的最佳反馈增益不同。利用前置光电负反馈方法，在实验上实现了全固态连续单频可调谐钛宝石激光器低频段的强度噪声抑制，通过调节反馈增益，使激光器的强度噪声抑制程度最大。在分析频率为1.125 MHz处，强度噪声由原来的8.7 dB降低到了1.4 dB，抑制程度达7.3 dB。调节反馈增益和相位延时，可以获得不同分析频率的强度噪声的降低。

The characteristic of the intensity noise suppression at the low frequencies of Tisapphire laser by using the optoelectronic feed-forward is theoretically analyzed. It shows that the best gain of the feedback circuit corresponds to the injecting noise. The suppression of intensity noise at low frequencies of Tisapphire laser by optoelectronic control is experimentally investigated, and the intensity noise of laser is suppressed as soon as possible by tuning the gain of the feedback circuit. The amplitude of the intensity noise reduces from 8.7 dB to 1.4 dB, and the maximum noise suppression of 7.3 dB is obtained at 1.125 MHz. It has been demonstrated that selecting the best delay time and feed-forward gain, the intensity noise can be suppressed near the quantum noise level at any sideband frequency.