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We evaluate the heterodyne efficiency of a heterodyne (coherent) detection system for partially polarized, partially coherent, quasi-monochromatic beams. The beam-coherence-polarization (BCP) matrix is used for the description of the statistical ensemble of this class of stochastic beams. We investigate the dependence of the efficiency of the detection process on the beams parameters as the beams...
It is shown analytically that the degree of polarization of a beam generated by an electromagnetic Gaussian Schell-model source which propagates through atmospheric turbulence tends to its value at the source plane with increasing distance of propagation. This result is independent of the spectral degrees of correlation of the source and of the strength of atmospheric turbulence. These conclusions...
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