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展示了使用圆柱形矢量束复合的120 Gbit/s流弹性连贯光通信

Yong Yu, Mingfeng Xu, Mingbo Pu

|December 13, 2023

概括

这项研究展示了一种使用多重向量束的120 Gbit/s自由空间光通信系统. 与传统的高斯波束相比,这种矢量波束系统显示了对大气动荡的提高弹性.

科学领域:

光学通信系统光学通信系统
大气流的影响大气流的影响.
先进的调制技术可以实现.

背景情况:

自由空间光学 (FSO) 通信提供高容量和机密性,但受到大气流的影响.
流会导致波面扭曲和闪,降低FSO的性能.
目前正在探索矢量束作为减轻这些影响的潜在解决方案.

研究的目的:

提出并实验证明使用多重向量束的高容量FSO系统.
为了研究一个矢量束复合连贯光通信系统的流弹性.
为了比较向量束与高斯束在流道中的性能.

主要方法:

一个120 Gbit/s的连贯光通信系统是使用四个多重向量束设计的.
每个向量束都携带着30 Gbit/s的正方形相位移关键 (QPSK) 信号.
该系统在不同的大气流条件下进行了测试,以评估性能.

主要成果:

在较弱的流下,系统位错误率仍低于前进错误纠正值 (3.8 × 10-3).
在较强的流下,与高斯束相比,向量束的通信中断概率显著下降 (从36%降至12%-18%).
实验调查证实了矢量束系统的抗流能力.

结论:

多复合矢量束在FSO通信中提供了对大气动荡的增强弹性.
拟议的系统证明了高容量,可靠的FSO链路的可行方法.
矢量束为克服光学无线通信中流引起的损害提供了一个有希望的解决方案.

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