用部分相干光束的时间平均减小湍流大气中的laser强度衰减
Reduction of laser intensity scintillations in turbulent atmospheres using time averaging of a partially coherent beam
摘要：
我们通过实验和数值模拟证明，部分相干光束（PCB）与时间平均相结合的应用导致闪烁指数显着降低。我们使用一个简化的实验方法，其中大气湍流模拟的相位扩散。的散斑大小，相位调制的幅度，和大气湍流的强度的作用进行检查。我们得到很好的协议，我们的数值模拟和我们的实验结果。该研究为物理大气中基于PCB的闪烁减少方法的未来应用提供了有益的基础。
英文摘要：
We demonstrate experimentally and numerically that the application of a partially coherent beam (PCB) in combination with time averaging leads to a significant reduction in the scintillation index. We use a simplified experimental approach in which the atmospheric turbulence is simulated by a phase diffuser. The role of the speckle size, the amplitude of the phase modulation, and the strength of the atmospheric turbulence are examined. We obtain good agreement between our numerical simulations and our experimental results. This study provides a useful foundation for future applications of PCB-based methods of scintillation reduction in physical atmospheres.
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