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We carry out experimental measurement of the scintillation index of a partially coherent beam-carrying vortex phase (i.e., Gaussian-Schell model vortex beam) propagating through thermally induced turbulence. It is demonstrated that a Gaussian-Schell model vortex beam has appreciably smaller scintillation than a Gaussian-Schell model beam, which will be useful in free-space optical communication.
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Liu et al. (2013) studied this question.
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