ACOUSTO-OPTIC POLARIZATION TRANSFORMER OF LASER RADIATION (VERSIONS) Russian patent published in 2017 - IPC G02F1/11 

FIELD: physics.

SUBSTANCE: acousto-optical device for converting the laser radiation polarization, consists of the first and the second acousto-optic cells, in which there is a collinear or non-collinear diffraction. The first cell carries out the input beam division into two beams, one of the two output beams of which falls on the second cell, which provides the Doppler shift of the second beam at the output, equal at sign and value to the Doppler shift of the first beam. Also, the device includes a half-wave phase plate, which rotates the polarization direction of one of the beams at 90°, an optical delay line for providing the predetermined phase difference of the two beams and the polarization prism, which provides a coherent summation of the two beams at the system output.

EFFECT: providing the opportunities to transform the input linear polarization of the laser beams into the arbitrary elliptical polarization and reducing the optical losses.

2 cl, 3 dwg