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arXiv physics/0611270physics.optics
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利用多束不同波长高斯laser光束抑制闪烁

Scintillation reduction by use of multiple Gaussian laser beams with different wavelengths

Avner Peleg, Jerome V. Moloney

摘要:

研究了N束不同波长的部分重叠准直最低阶高斯激光束在弱湍流大气中的闪烁指数。使用Rytov近似,我们计算的初始光束分离,最大限度地减少纵向闪烁。通过优化光束间距和光斑尺寸,可以进一步减小纵向闪烁。最佳N束配置的纵向闪烁与N成反比,导致9束系统与单束值相比减少了92%。最佳N束配置的径向闪烁值明显小于相应的单束值。

英文摘要:

We study the scintillation index of N partially overlapping collimated lowest order Gaussian laser beams with different wavelengths in weak atmospheric turbulence. Using the Rytov approximation we calculate the initial beam separation that minimizes the longitudinal scintillation. Further reduction of the longitudinal scintillation is obtained by optimizing with respect to both beam separation and spot size. The longitudinal scintillation of the optimal N-beam configurations is inversely proportional to N, resulting in a 92% reduction for a 9-beam system compared with the single beam value. The radial scintillation values for the optimal N-beam configurations are significantly smaller than the corresponding single beam values.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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