低维无序结构的激光物理和应用是一个新兴的前沿课题。其中，激光发射对应多个有效腔长和光子局域化分布，不能用常规激光器的锁模手段获得规则脉冲，需要探索新的机理和方法。研究将针对低维无序波导中的锁模脉冲生成问题展开原创性的探索。拟提出模式/波长、时间和空间多机制融合关联的脉冲随机激光动力学模型，完成建模和仿真。拟通过外腔设计，同时获得随机模式滤波和脉冲压窄机制，实现无序体系的规则脉冲激光；还将融合光子局域化的空域调控手段与随机激光锁模这样的时域调控手段，从时-空多维度上设计体系中光与物质的相互作用和瞬态响应，创新锁模机理和方法。研究将首次在无序体系中获得重频可调、空间分布可控的锁模激光脉冲，有助于更好认识和规整无序介质中光子分布和时域瞬态特性，为克服现有随机激光器输出模式不稳定、时域无法控制等难题提供极佳途径，还将为该类体系中多物理场的交互作用研究及应用开辟道路。

Laser physics and application in low-dimensional disordered structures is an emerging frontier. Wherein, laser emission corresponds to a plurality of effective cavity lengths and light localization. Mode locking method in conventional lasers can not be used to obtain regular pulses in such system, and new mechanisms and methods need to be explored. This project will explore the mode-locking pulse generation problem in low-dimensional disordered waveguides. A pulsed random laser dynamics model with combination of mode/wavelength, time and space multi-mechanisms will be proposed, providing a novel theoretical model and simulation methods. Through design of external cavity, both random mode filtering and pulse narrowing mechanism will be realized, so as to obtain regular pulsed laser in disordered system. Besides, control of light localization (i.e., spatial modulation) and mode-locking of random lasers (i.e., time-domain modulation) will be combined to design and tailor light-mater interaction and transient in disordered system. Thus, both the idea and method are original. For the first time, the research will obtain the mode-locking laser pulse with adjustable frequency and controllable spatial distribution in disordered systems. It will be the key to good understanding/regularization of photon distribution and time-domain transient characteristics in disordered media. It is expected to be an excellent way to overcome the problems of unstable output mode and uncontrollable time domain of the existing random lasers, and will also open the way for the study and application of multiphysics interactions in such systems.