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Updated: Jul 12, 2025
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Quasi-light Storage for Optical Data Packets
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100Gb/s连贯光学安全通信超过1000公里,基于模拟-数字混合混沌
Optics express
|October 20, 2023
概括
这项研究展示了一种新的连贯光学安全通信系统,使用模拟数字混合混乱来实现100Gb/s的QPSK信号传输在1000公里光纤上. 该系统实现了高质量的混乱同步和安全通信,低于前错误纠正值.
科学领域:
- 光电和通信领域的光电子和通信领域.
- 信息安全 信息安全
- 混沌理论 混沌理论
背景情况:
- 混乱的安全通信已经推进了连贯检测和复杂化.
- 这些系统的长途 (1000公里) 演示需要进一步的探索.
研究的目的:
- 提出和演示一种新的连贯光学安全传输系统,利用模拟数字混合混乱.
- 为了实现高容量,长途安全通信,改进混乱信号特性.
主要方法:
- 开发了一个模拟数字混合混乱系统,使用模拟数字转换器 (ADC) 和比特提取.
- 在半导体激光 (SL) 中实现了65536级脉冲振幅调制 (PAM) 信号,用于混乱再生.
- 采用波长分割多重复合 (WDM) 来传输二进制数字和加密信号,使用数字信号处理 (DSP) 和神经网络进行后补偿.
主要成果:
- 在1000公里的标准单模光纤 (SSMF) 上成功传输了100 Gb/s的正方位相位移关键 (QPSK) 信号.
- 实现了9.88×10−4的解密比特错误率 (BER),明显低于7%的前向错误校正 (FEC) 值 (3.8×10−3).
- 通过更高阶映射增强了模拟混乱信号的概率密度分布.
结论:
- 拟议的系统为高容量,远程混乱的光通信提供了可行的解决方案.
- 这项研究弥合了安全通信系统的差距,利用模拟数字混合混乱扩展光纤链接.
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