APODIZATOR OF LASER BEAM Russian patent published in 2016 - IPC G02B27/58 H01S3/10 

FIELD: laser engineering.

SUBSTANCE: apodizator of laser beam comprises toothed diaphragm and a spatial filter, in which gear diaphragm with radius of circle of tops of teeth R_d is supplemented with correcting element. Compensating element is made in form of opaque ring with outer radius R_out< R_d and inner radius R_in installed coaxially with diaphragm, at that R_out-R_in<<R_d, R_d-R_out<<R_d. Compensating element can be installed in plane of gear diaphragm or at some distance from it.

EFFECT: technical result is generation of laser beam with high coefficient of filling aperture propagating without considerable diffraction profile distortion intensity at distance.

3 cl, 3 dwg