Scintillation optimization of linear Gaussian beam array propagating through weak turbulence |
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| Authors: | Hua Tang Xuejing Yuan Baoqiang Wang |
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| Affiliation: | 1. School of Electronics and Information Engineering, Beihang University, Beijing 100191, China.huatang@buaa.edu.cn;3. School of Electronics and Information Engineering, Beihang University, Beijing 100191, China. |
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| Abstract: | The analytical expression for the scintillation index of the linear Gaussian beam array propagating through weak turbulence in the horizontal path is derived, where the coherent combination is considered. By simulating this expression, the on-axis scintillation index of the linear Gaussian beam array is investigated. The results indicate that the beam number could be optimized to reduce the scintillation index of the uniformly-spaced linear beam array, and the optimum beam number decreases with the separation distance between the adjacent beams increasing. With a given beam array length, the scintillation index of the non-uniformly-spaced linear beam array in the far field can be reduced by symmetrically adjusting the locations of the inner beams. |
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| Keywords: | scintillation uniformly-spaced linear beam array non-uniformly-spaced linear beam array |
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