Solitary Chaotic Semiconductor Laser Diode for Parallel Random Number Generation and Optical Decision Making

作者：Jiacheng Li, Fei Wang, Tao Deng · 发表于：Journal of Lightwave Technology · 年份：2025 · DOI：10.1109/jlt.2025.3638423 · 被引用次数：3 · 研究领域：Chaos control and synchronization、Chaos-based Image/Signal Encryption、Quantum chaos and dynamical systems

Optical chaos is crucial in various applications, such as image encryption, secure communications, anti-jamming sensing, light detection and ranging, and reinforcement learning. External optical feedback represents the predominant configuration in laser diode chaos applications. However, various fixed external cavities introduce significant time delay signatures. The previously reported self-chaotic laser effectively addresses this issue; however, its utilization is limited due to the restricted number of output modes. In this paper, we propose a solitary chaotic comb source based on multimode interaction in a laser diode, providing 173 chaotic comb lines within a 100 nm spectral range, with a channel effective bandwidth of up to 8.4 GHz. The channels cross-correlation is consistently below 0.08, satisfying the orthogonality criteria. This scheme can generate an offline random number sequence with an expected data throughput of 32 Tbits/s and can resolve at least 256 multi-armed bandit issues. We have successfully opened a new way to develop low-cost, massively integrated, parallel chaotic comb sources, and this technology possesses the potential to revolutionize entire chaotic application systems.