提出了一种利用非线性光纤环镜的开关特性将连续波同时转化为亮孤子和暗孤子的新方法 ,即让连续波和另一波长的调制脉冲串共同耦合入光纤环镜 ,交叉相位调制使得一部分连续波被环镜透射 ,其余部分被反射 ;再让透射波和反射波分别在反常色散光纤和正常色散光纤中传输 ,自相位调制和群速度色散之间的相互作用使得透射波和反射波分别演化为亮、暗孤子。数值计算表明 ,该方法不仅可产生脉宽比调制脉冲窄、重复频率比调制脉冲高的亮孤子和暗孤子 ,而且几乎可将全部的连续波能量转化为孤子能量。 A new method of converting continuous wave into bright soliton and dark soliton by using the switching characteristics of nonlinear fiber ring mirror is proposed. The continuous wave and the modulated pulse train of another wavelength are co-coupled into a fiber ring mirror. The cross-phase modulation So that a part of the continuous wave is transmitted through the ring mirror and the rest is reflected; the transmitted wave and the reflected wave are respectively transmitted in the anomalous dispersion fiber and the normal dispersion fiber; the interaction between the self-phase modulation and the group velocity dispersion makes the transmitted wave and the reflection Waves evolved into bright, dark solitons. The numerical results show that this method not only can generate bright and dark solitons with narrower pulse width and higher repetition rate than modulated pulse, but also can convert almost all continuous wave energy into soliton energy.