Various nonequilibrium multi-pulse states can emerge in a mode-locked laser through interactions between the quasi-continuous-wave background (qCWB) and pulses inside the laser cavity. While they have been regarded as unpredictable and hardly controllable due to the noise-like nature of qCWB, we here demonstrate that the qCWB landscape can be manipulated via optoacoustically mediated pulse-to-qCWB interactions, which alters the behaviors of multi-pulse dynamics. In this process, impulsive qCWB modulations are created at well-defined temporal locations, which act as the point emitters and attractive potentials for drifting pulse bunches and soliton rains. Hence, we can transport a single pulse bunch from a certain temporal position to another, and also make soliton rains created and collided exclusively at specific temporal locations. Our study opens up possibilities to control the nonequilibrium multi-pulse phenomena precisely in the time domain, which would offer a practical means of advanced optical information processing.

通过准连续波背景（qCWB）与激光腔内部脉冲之间的相互作用，锁模激光器中会出现各种非平衡多脉冲状态。尽管由于qCWB的类噪声性质，它们被认为是不可预测的且几乎不可控制的，但我们在这里证明了可以通过光声介导的脉冲与qCWB相互作用来操纵qCWB格局，从而改变了多脉冲动力学的行为。在此过程中，在明确定义的时间位置创建了脉冲式qCWB调制，这些调制器用作点发射器和诱人的电位，用于漂移脉冲束和孤子雨。因此，我们可以将单个脉冲束从某个特定的时间位置传输到另一个位置，并且还可以使孤子雨在特定的特定时间位置专门产生和碰撞。