ADAPTIVE LASER BEAM FORMATION Russian patent published in 2023 - IPC B23K26/67 G01J1/42 

FIELD: adaptive generation of laser beams.

SUBSTANCE: method and device for implementing adaptive splitting of a partially coherent light beam by means of a spatial light modulator (SLM) consists in creating a partially coherent primary light beam from a collimated laser beam, creating a field distribution in the far zone, modulating in the SLM phase, directing for reflections on the SLM display element, preventing the formation of a primary coherent light beam by any moving element, removing from the primary light beam, after the SLM, the control and main beams are directed to the field distribution in the far zone, to the shooting camera and the control beam is measured by the camera, while ensure compliance with the dynamic range of the camera by means of a variable intensity controller to control the intensity of the pilot beam, regardless of the average power of the specified at least one main beam, configure a closed loop for phase calculation, in which the output signal from the camera is introduced into a closed loop for multiple iterations of the phase calculation algorithm, executed by the controller.

EFFECT: enhancement of laser system functionality.

21 cl, 17 dwg