混乱的
计算机科学
炸薯条
光子学
带宽(计算)
电子工程
光通信
光学混沌
电子线路
光子集成电路
传输(电信)
半导体激光器理论
光学
物理
激光器
电信
量子力学
人工智能
工程类
作者
Yisi Wang,Zheng Wu,Boyu Li,Jisun Chen,Lijie Shen,Huihui Yang,Yuan Feng,Xiangfei Chen,Mi Li
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2024-04-02
卷期号:32 (9): 15923-15923
摘要
A chip-scale chaotic laser system with optoelectronic delayed feedback is proposed and analyzed by numerical simulation. This chip eliminates the need for bulky delay components such as long optical fibers, free propagation and external cavities, relying solely on internal devices and waveguides to achieve feedback delay. This approach simplifies integration, maintaining a compact chip size. According to the results, the chip-scale system exhibits rich dynamics, including periodicity, quasi-periodicity, and chaotic states. Chaos resembling Gaussian white noise is achieved with picosecond-level delay time, highlighting the complexity of chip-scale signals. Furthermore, time delay signature (TDS) concealment is enhanced with a short delay comparable to the inverse bandwidth τ, albeit at a cost of sacrificing chaotic signal complexity. Applying the photonic integrated circuits to practical applications, 1 Gbps back-to-back communication transmission is feasible. Results demonstrate low bit error rates (BERs) for authorizers (<10
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