论文标题
增强的大气湍流弹性，并连续干扰取消DSP在模式下多路复用空间光学链接
Enhanced Atmospheric Turbulence Resiliency with Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links
论文作者
论文摘要
我们通过实验证明了137.8 GBIT/S/模式模式多路复用空间光学通信链路的增强大气湍流的弹性通过应用连续取消取消数字信号处理算法。通过在模式分割多路复用链路中的冗余接收通道进一步提高了湍流的弹性。概念证明的证明是使用市售模式选择的光子灯笼，商业应答器和基于空间光调节器的湍流模拟器进行的。在此链接中，每种模式的5个空间模式携带34.46 GBAUD双极化正交相位移位信号成功传输，平均位误差率低于硬否决误差校正校正限制。结果，我们在模式多重多路自由空间的模式多路线中，在仿真的湍流中，达到了创纪录的最高模式和极化多路复用通道次数为10，创纪录的线路速率为10，创纪录的最高线速率和创纪录的净光谱效率为13.9位/s/s/hz。
We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital signal processing algorithm. The turbulence resiliency is further enhanced through redundant receive channels in the mode-division multiplexing link. The proof of concept demonstration is performed using commercially available mode-selective photonic lanterns, a commercial transponder, and a spatial light modulator based turbulence emulator. In this link, 5 spatial modes with each mode carrying 34.46 GBaud dual-polarization quadrature phase shift keying signals are successfully transmitted with an average bit error rate lower than the hard-decision forward error correction limit. As a result, we achieved a record-high mode- and polarization-division multiplexing channel number of 10, a record-high line rate of 689.23 Gbit/s, and a record-high net spectral efficiency of 13.9 bit/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system.
