Photonic systems are gaining recognition for their potential to enable ultrafast, parallel decision-making in secure communications and artificial intelligence. However, existing systems often struggle with complex hardware and the generation of reliable, high-speed signals. Chaotic lasers, due to their nonlinearity and broad output, offer a promising solution to these challenges. In this study, we introduce a free-running quantum dot (QD) spin-vertical-cavity surface-emitting laser (spin-VCSEL) that generates four channels of chaotic polarized light. These outputs exhibit low correlation and are free from time delay signatures, overcoming traditional chaotic signal generation limitations. We analyze the influence of key laser parameters—pump intensity, polarization ellipticity, and intra-dot relaxation rate—on chaotic dynamics. Applied to the multi-armed bandit problem, this multi-channel system demonstrates significantly enhanced decision-making speed and robustness over single-channel configurations. These findings underscore the potential of QD spin-VCSELs as high-performance, compact platforms for parallel photonic decision-making, advancing the development of next-generation intelligent processing technologies.

中文翻译：

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基于单个量子点自旋 VCSEL 的并行光学混沌生成和超快光子决策


光子系统因其在安全通信和人工智能中实现超快速、并行决策的潜力而获得认可。然而，现有系统通常难以处理复杂的硬件和生成可靠的高速信号。混沌激光器由于其非线性和宽输出，为这些挑战提供了一个有前途的解决方案。在这项研究中，我们介绍了一种自由运行的量子点 （QD） 自旋垂直腔表面发射激光器 （spin-VCSEL），它产生四个通道的混沌偏振光。这些输出表现出低相关性，并且没有时间延迟特征，克服了传统的混沌信号生成限制。我们分析了关键激光参数（泵浦强度、偏振椭圆度和点内弛豫率）对混沌动力学的影响。应用于多臂老虎机问题，这种多通道系统比单通道配置显著提高了决策速度和稳健性。这些发现强调了 QD 自旋 VCSEL 作为高性能、紧凑的并行光子决策平台的潜力，推动了下一代智能处理技术的发展。