Vol. 3, issue 12, article # 9Lukin V.P., Charnotskii M.I. Optimal phase correction of focused beams in a randomlynonuniform medium. // Atmospheric and oceanic optics. 1990. V. 3. No. 12. P. 1170-1174.
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An algorithm for selecting the optimal phase when correcting turbulent fluctuations of a focused Gaussian beam is studied. The calculations are performed by the method of functional integration. It is shown that in order to optimize the average on-axis intensity of a focused Gaussian beam a phase-conjugation algorithm must be used for the correction, and the phase of a spherical wave, calculated in the approximation of the method of smooth perturbations, is employed as the correcting phase.