Focusing characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere

ZHAO Qi; HAO Hongyu; FAN Hongying; LI Jianxin; JIANG Zewei; XIAO Xing

doi:10.7510/jgjs.issn.1001-3806.2016.05.028

For studying characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere, analysis was carried out based on ABCD matrix and the expressions of the intensity, beam width and power in bucket were obtained to characterize the focusing characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere. The results show that under different turbulence intensities, the focusing characteristics of partially coherent cosh-Gaussian beams are different from those of totally coherent cosh-Gaussian beams and that the effect of turbulence is more serious to totally coherent cosh-Gaussian beams characterized with the power in bucket and beam width. However, the influence of turbulence on the focused partially coherent cosh-Gaussian is more serious than the collimated beams. The results are useful to study the focusability of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere and helpful to design applicable optical systems for incoherent combination of paraxial beams.

Focusing characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere

1. Southwest Institute of Technical Physics, Chengdu 610041, China;

2. School of Electronic and Optical Engineering, Nanjing Uniersity of Science and Technology, Nanjing 210094, China

Received Date: 2015-06-09

Accepted Date: 2015-11-29

Available Online: 2016-09-25

Abstract: For studying characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere, analysis was carried out based on ABCD matrix and the expressions of the intensity, beam width and power in bucket were obtained to characterize the focusing characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere. The results show that under different turbulence intensities, the focusing characteristics of partially coherent cosh-Gaussian beams are different from those of totally coherent cosh-Gaussian beams and that the effect of turbulence is more serious to totally coherent cosh-Gaussian beams characterized with the power in bucket and beam width. However, the influence of turbulence on the focused partially coherent cosh-Gaussian is more serious than the collimated beams. The results are useful to study the focusability of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere and helpful to design applicable optical systems for incoherent combination of paraxial beams.

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Reference (18)

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Focusing characteristics of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere

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