论文标题
飞秒丝和结构化光的自由空间光学通信
Femtosecond Filament Coupled with Structured Light for Free Space Optical Communication
论文作者
论文摘要
通过云层产生激光丝会产生冲击波，从空气中移动小水滴，形成一个准透明通道，可以通过该通道传输信息。我们提出了一种强大的方法，该方法使用结构化的光束和飞秒灯丝使用结构化光束进行自由空间光学通信。涡流基于它们的空间曲线和非裂纹特性非常适合在细丝周围传播。我们还使用这些结构化光束开发了一个4位通信通道。我们介绍了一种称为分段空间分级多路复用的方法。我们的系统表现出对噪声的韧性，并且不受细丝的影响。此方法可以提高自由光通道的可扩展性，鲁棒性和容量。
The generation of a laser filament through clouds produces a shockwave which displaces the small water droplets from the air to create a quasi-transparent channel through which, information can be transmitted. We present a robust method that utilizes the channel for free-space optical communication using structured light beams coupled with a femtosecond filament. Vortex beams based on their spatial profiles and non-diffractive characteristics are perfectly suited to propagate around the filament. We have also developed a 4-bit communication channel using these structured light beam. We introduce a method dubbed segmented space division multiplexing. Our system demonstrates resilience to noise and is unaffected by the filament. This method can improve the scalability, robustness, and capacity of the free optical channel.
