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首页> 外文期刊>Optics Letters >Turbulence compensation of an orbital angular momentum and polarization-multiplexed link using a data-carrying beacon on a separate wavelength
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Turbulence compensation of an orbital angular momentum and polarization-multiplexed link using a data-carrying beacon on a separate wavelength

机译：使用数据信标在单独的波长上对轨道角动量和偏振复用链路进行湍流补偿

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摘要

We investigate the sensing of a data-carrying Gaussian beacon on a separate wavelength as a means to provide the information necessary to compensate for the effects of atmospheric turbulence on orbital angular momentum (OAM) and polarization-multiplexed beams in a free-space optical link. The influence of the Gaussian beacon's wavelength on the compensation of the OAM beams at 1560 nm is experimentally studied. It is found that the compensation performance degrades slowly with the increase in the beacon's wavelength offset, in the 1520-1590 nm band, from the OAM beams. Using this scheme, we experimentally demonstrate a 1 Tbit/s OAM and polarization-multiplexed link through emulated dynamic turbulence with a data-carrying beacon at 1550 nm. The experimental results show that the turbulence effects on all 10 data channels, each carrying a 100 Gbit/s signal, are mitigated efficiently, and the power penalties after compensation are below 5.9 dB for all channels. The results of our work might be helpful for the future implementation of a high-capacity OAM, polarization and wavelength-multiplexed free-space optical link that is affected by atmospheric turbulence. (C) 2015 Optical Society of America
机译：我们研究在单独的波长上感测数据承载高斯信标的方法，以提供必要的信息来补偿大气湍流对自由空间光链路中的轨道角动量（OAM）和偏振复用光束的影响。实验研究了高斯信标波长对OAM光束在1560 nm处补偿的影响。可以发现，随着1522-1590 nm波段信标从OAM光束的波长偏移的增加，补偿性能会缓慢下降。使用该方案，我们通过仿真动态湍流和1550 nm的数据承载信标，通过实验证明了1 Tbit / s的OAM和偏振复用链路。实验结果表明，在所有10个数据通道（每个通道都承载100 Gbit / s信号）上的湍流效应得到有效缓解，所有通道补偿后的功率损失均低于5.9 dB。我们的工作结果可能对将来受大气湍流影响的高容量OAM，偏振和波长复用的自由空间光链路的实施有所帮助。 （C）2015年美国眼镜学会

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