绝大多数激光混沌系统是由分立器件所构成，且尺寸过大，难以满足现代通信低功耗、集成化等需求。VCSELs作为竖直谐振腔的典型代表，其阈值低、耦合效率高、易于实现光电集成和高密度阵列，而且具有自旋自由度的VCSELs可进一步提升相关性能，但其在激光混沌相关领域的研究还不多见，相关的理论体系构建、潜在应用及性能等问题都有待深入探讨。本项目针对面向集成化的混沌系统发展趋势与需求，探索光泵自旋VCSELs丰富动力学行为及其应用。首先，引入外场调控，构建理论体系、仿真模型及实验平台，揭示自旋偏振动力学行为、分岔行为和混沌信号输出特性；其次，针对自旋VCSELs可产生高频单周期振荡信号，利用外场调控进行优化，获得高品质微波高频信号。最后，探索其在全光逻辑、高速储备池计算及混沌光保密技术领域等的潜在应用。这些研究工作及成果对于推动微波光子学和激光混沌保密相关技术的发展有积极理论意义和应用价值。

Most chaotic laser systems are constituted based on discrete devices, which are oversized and thus cannot meet the requirement of modern communication systems aiming for low power consumption and integration. VCSELs are typical representatives of vertical-cavity resonators, with low threshold and high coupling efficiency, and are easy to achieve optoelectronic integration and high-density arrays. In particular, VCSELs with the spin degree of freedom can further improve their performance, but the research on spin- VCSELs in the field of laser chaos is still rare. The related theoretical system construction, potential applications and their performances need to be further studied. This project aims at the development trend and demand of integrated chaotic systems, and explores the rich dynamics of optically pumped spin-VCSELs and their applications. Firstly, it introduces external field regulation to spin VCSELs, constructs the corresponding theoretical architecture, the simulation model and the experimental setup, as well as deeply studies their spin polarization dynamics behavior, bifurcation behavior, and the properties of the generated optical chaos. Secondly, based on the fact that spin-VCSELs can generate high-frequency period-one oscillation signals, it utilizes external field regulation to optimize and obtain high-quality microwave high-frequency signals. Finally, it also explores the potential applications to all-optical logical gates, high-speed reservoir computing, and chaos-based secure communication techniques. The current research and the possible findings have positive theoretical significance and application value for promoting the development of microwave photonics and laser chaos security related technologies.