ACOUSTO-OPTIC ELECTRONIC-CONTROLLED SOFT LASER DIAPHRAGM (VERSIONS) Russian patent published in 2017 - IPC H01S3/10 G02F1/11 G02B27/58 

FIELD: physics.

SUBSTANCE: device includes two acousto-optic elements provided with piezo transducers. The diffraction planes of the acousto-optic elements are orthogonal. The first piezo transducer is connected to the first oscillator by the first matching system, and the second piezo transducer is connected to the second oscillator by means of the second matching system. The laser radiation passes successively through the first and the second acousto-optic elements, with the diffracted beam coming out of the first acousto-optic element being used as the input beam for the second acousto-optic element. The diffracted beam emerging from the second acousto-optic element passes through the diaphragm. Instead of two acousto-optic elements, one 2D acoustic element can be used with two orthogonally arranged piezo transducers.

EFFECT: providing adaptive control of the device and the possibility of converting the spatial beam profile with axial symmetry into an output beam with a rectangular profile.

2 cl, 5 dwg