Abstract
The possibilities of compensating random small-scale phase distortions in a linear wavefront reversal system utilizing a spatial phase filter were analyzed by numerical methods. It was found that for an appropriate choice of the parameters of the system it is possible to compensate effectively such distortions in the variance range 0.1–1.3 rad2. The improvement in the axial light intensity depends on the spatial spectrum of the distortions and can be as high as a factor of ten. The permissible misalignments of the system are estimated and recommendations are given on the choice of its parameters.
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