Standard vortex beams carrying different OAM (optical angular momentum) modes can provide independent communication channels for information transmission. However, they are unable to reach the capacity limit of a communication channel due to a rapid divergence of the beams with high values of the OAM order. The solution can be found by using multi-vortex geometric beams.

中文翻译：

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OAM 波束结构的复杂性不断提高，作为实现更高数据容量的一种方式

携带不同OAM（光学角动量）模式的标准涡旋光束可以为信息传输提供独立的通信通道。然而，由于具有高 OAM 阶值的波束的快速发散，它们无法达到通信信道的容量限制。可以通过使用多涡几何光束找到解决方案。