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Wavefront sensing for FSO systems based on projected pupil plane pattern
Modern Applied Optics | 更新时间：2024-05-06
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    • Wavefront sensing for FSO systems based on projected pupil plane pattern

    • “科研人员在星地自由空间光学通信领域取得了重要进展。为了解决该系统中的提前角问题，他们提出了一种基于光强传输的新型波前探测技术——投影光瞳面分布（PPPP）。这一技术利用TIE光强传输公式，通过分析不同传输距离下的光强分布变化，能够反解出大气湍流引起的波前畸变。实验结果显示，PPPP技术采用上行通信激光本身的后向瑞利散射，其测量的大气湍流方向与通信卫星方向一致，因此能够有效解决星地激光通信中的提前角问题。实验模拟了1米口径的地基望远镜作为上行激光发射装置和后向散射光斑成像设备，通过等效高度分别为10公里和17公里的上行激光后向散射光斑图像，实现了对10公里以下大气湍流的波前探测。与传统的夏克-哈特曼波前探测器相比，PPPP技术能够实现相似的波前重构效果，两者重构相位的残差约为初始相位的30%。这一研究成果为星地自由空间光学通信系统中的提前角问题提供了有效的解决方案，为相关领域的研究开辟了新方向，为未来的星地激光通信技术的发展奠定了坚实基础。”
      ”
    • Optics and Precision Engineering   Vol. 32, Issue 7, Pages: 945-955(2024)

    • DOI：10.37188/OPE.20243207.0945    

      CLC： TN929.12;O436

    • Published：10 April 2024，

      Received：29 August 2023，

      Revised：09 October 2023，

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  • YANG Huizhe,ZHANG Zhenyu,LIU Jin,et al.Wavefront sensing for FSO systems based on projected pupil plane pattern[J].Optics and Precision Engineering,2024,32(07):945-955. DOI： 10.37188/OPE.20243207.0945.

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