Abstract
The spreading properties of the rectangular elliptical Gaussian beam (EGB) array propagating in non-Kolmogorov turbulence are investigated by using the derived analytical expression for the root-mean-square (rms) beam width. The results indicate that the rms beam width of the EGB array is smaller than that of the circular Gaussian beam array for long-distance propagation. The optimum separation distances are proved to exist and have a strong dependence on the ratio of the waist width along the long axis to that along the short axis of the EGB. Further, the rms beam width in non-Kolmogorov turbulence is different from that in Kolmogorov turbulence.
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Acknowledgements
This work is supported by the Key Project of National Natural Science Foundation of China (Grant No.60837004), the Project of National Natural Science Foundation of China (Grant No.61101005), the Project-sponsored by SRF for ROCS, SEM, the Fundamental Research Funds for the Central Universities (Grant No.YWF-11-03-Q-159).
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Ou, B., Tang, H. Average spreading of rectangular elliptical Gaussian beam array propagating in non-Kolmogorov turbulence. Appl. Phys. B 107, 201–204 (2012). https://doi.org/10.1007/s00340-011-4840-5
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DOI: https://doi.org/10.1007/s00340-011-4840-5