ABSTRACT In this work, we developed an adaptive optical correction module and polarization control module to compensate for the effects of atmospheric turbulence on long-distance free-space coherent optical communications. We established a coherent optical communication system based on heterodyne differential binary phase-shift keying modulation in Xi’an University of Technology, China, to achieve video transmissions over a long distance of 10.2 km. Indeed, the modules resulted in a baseband signal with a more regular pattern with a significant decrease in burrs and the polarization state of the optical signal was effectively controlled, which verifies the usability of the modules.

中文翻译：

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用于10公里自由空间相干光通信的自适应光学校正和偏振控制模块的开发

摘要 在这项工作中，我们开发了一种自适应光学校正模块和偏振控制模块，以补偿大气湍流对长距离自由空间相干光通信的影响。我们在西安理工大学建立了基于外差差分二进制相移键控调制的相干光通信系统，实现了10.2公里的远距离视频传输。确实，模块得到的基带信号图案更加规则，毛刺明显减少，光信号的偏振态得到有效控制，验证了模块的可用性。