提出延时反馈半导体激光器双劈控制混沌方法,建立有劈控制的激光动力学物理模型.通过调节激光器外腔光路中的光器件劈去控制反馈光光程,改变了反馈光的延时时间和反馈强度,在物理上实现了延时时间和反馈强度的双参数混沌控制.数值结果证明该方法可以控制激光混沌到周期态,能使激光器输出光脉冲平均功率增加. The chaotic method of dual-split control of semiconductor laser with delay-feedback is proposed and the laser kinetic physical model with split control is established. By adjusting the optical path of feedback light in the optical path of laser cavity, the delay time of feedback light and Feedback strength, two-parameter chaos control of delay time and feedback strength is realized physically.The numerical results show that this method can control the laser chaos to the periodic state and increase the average power of the laser output optical pulse.