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METHOD AND DEVICE FOR TRANSFORMING A LASER BEAM WITH A GAIL DISTRIBUTION OF GAUSSIAN ENERGY IN LASER BEAM WITH UNIFORM ENERGY DISTRIBUTION
METHOD AND DEVICE FOR TRANSFORMING A LASER BEAM WITH A GAIL DISTRIBUTION OF GAUSSIAN ENERGY IN LASER BEAM WITH UNIFORM ENERGY DISTRIBUTION
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机译：在能量均匀分布的激光束中变换高斯能量盖尔分布的激光束的方法和装置
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摘要
The invention relates to a method and a device for transforming a Gaussian laser beam into a "top-hat" laser beam. The method consists in using the optical Kerr effect in the materials by passing the Gaussian laser beam through a non-linear material (2), which modifies the refractive index of the non-linear medium and therefore the spatial phase of the laser beam. . This modification of the spatial phase modifies the propagation of the laser beam and creates a zone (4) in the virtual space in which the laser beam has a uniform or annular energy distribution. An optical system (8) then realizes a real image of this area (4).
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