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Cylindrical vector beams multiplexing communication in air-core photonic crystal fiber

机译：空心光子晶体光纤中的圆柱矢量束多路复用通信

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The data rate in a single-mode fiber is approaching the capacity limit given by the Shannon theory. Mode division multiplexing, such as few modes, orbital angular momentum, and cylindrical vector beam (CVB) multiplexing, has shown great potential to further increase data capacity in both free-space and fiber communication. We propose and demonstrate high-order CVB multiplexing communication in an air-core photonics crystal fiber (PCF). The simulation results show that the 19-cell air-core PCF supports transmission of CVB modes from ±1 to ±4 orders. In the experiment, ±1- to ±4-orders CVBs are transmitted in 8.25-m-long air-core PCF with the mode purities higher than 76.5%. We demonstrate four coaxial CVB channel communication by multiplexing the ±2- and ±3-orders CVB modes. Each CVB channel carries 10-Gbit/s on-off keying signals and the measured bit error rates satisfy the forward error correction threshold. CVB communications based on air-core PCF can be used in short-distance optical communication with high capacity and low optical latency.
机译：单模光纤中的数据速率接近香农理论给出的容量极限。模式划分多路复用，例如很少的模式，轨道角动量和圆柱矢量束（CVB）多路复用，在自由空间和光纤通信中都显示出巨大的潜力，可以进一步增加数据容量。我们提出并演示了空心光子晶体光纤（PCF）中的高阶CVB多路复用通信。仿真结果表明，该19芯空心PCF支持从±1到±4阶的CVB模式传输。在实验中，±1至±4阶CVB在8.25米长的空心PCF中传输，其模式纯度高于76.5％。我们通过复用±2级和±3级CVB模式来演示四个同轴CVB通道通信。每个CVB通道均承载10 Gbit / s的开关键控信号，并且测得的误码率满足前向纠错阈值。基于空中PCF的CVB通信可用于具有高容量和低光学等待时间的短距离光学通信中。

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