FIELD: physics; optics.
SUBSTANCE: invention is related to method for control of partially coherent or incoherent optical radiation wave or waves field intensity distribution at final distance from its source or in far-field region and device that realises the stated method. At that in realisation of the stated method, optical element is used, which is installed in mentioned field and comprises diffraction grid arranged as periodical by one or two coordinates x, y that are orthogonal in relation to direction of falling optical radiation distribution, with the possibility to separate the mentioned field into partially colliding beams aligned in relation to directions of diffraction order directions.
EFFECT: even distribution of intensity in multimode laser beam with the help of diffraction element.
11 cl, 8 dwg
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