激光诱导等离子体点火是一种新颖的发动机点火方式,这种技术点火位置精确可控,点火延迟时间短,无烧蚀作用,还可实现同时多点点火,能够提高发动机的燃烧效率,具有良好的发展前景。主要针对用于激光诱导等离子体点火技术中的核心元件——激光光源的发展状况及最新成果作了全面的综述,并对该种类型激光器的发展前景进行了展望。 Laser-induced plasma ignition is a novel engine ignition method. The ignition position of the laser is precisely controlled, the ignition delay time is short, there is no ablation effect, and at the same time, multiple ignitions can be achieved, and the combustion efficiency of the engine can be improved. The development prospects. In this paper, the development status and latest achievements of laser light source, which is the core component of laser-induced plasma ignition technology, are mainly reviewed. The prospect of this kind of laser is also forecasted.