Measurements of the fourth moment of the optical field using the coherence enhancement phenomenon

Alexey Nikolaevic Bogaturov; Christopher Dainty; Yu. V. Golembeovskii; Vladimir Alexeevich Myakinin; Christopher J. Solomon; Nicholas J. Wooder

doi:10.1117/12.211931

15 June 1995 Measurements of the fourth moment of the optical field using the coherence enhancement phenomenon

Alexey Nikolaevic Bogaturov, Christopher Dainty, Yu. V. Golembeovskii, Vladimir Alexeevich Myakinin, Christopher J. Solomon, Nicholas J. Wooder

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Proceedings Volume 2471, Atmospheric Propagation and Remote Sensing IV; (1995) https://doi.org/10.1117/12.211931
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

The results of laboratory measurements of the spatial distribution of the four-point coherence function (fourth moment) of a spherical wave are presented. Using a special interferometric system we have illuminated a rough surface through turbulence with a coherent point source and observed the interference pattern in the source plane. Experimental data demonstrate the existence of a region where coherence enhancement after backscattering through turbulence may be observed. The time averaged intensity distribution in this region is described by the fourth moment of a spherical wave propagated through turbulence. This study demonstrates that the measurements of the fourth moment may also be applicable for estimating of the inner scale of the turbulence.

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Alexey Nikolaevic Bogaturov, Christopher Dainty, Yu. V. Golembeovskii, Vladimir Alexeevich Myakinin, Christopher J. Solomon, and Nicholas J. Wooder "Measurements of the fourth moment of the optical field using the coherence enhancement phenomenon", Proc. SPIE 2471, Atmospheric Propagation and Remote Sensing IV, (15 June 1995); https://doi.org/10.1117/12.211931

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