Soft-Edge Aperture for Laser Beam Peak Suppression

The aperture is designed with non-uniform edge characteristics: the first edge has a first curvature radius while the second edge has a second curvature radius that is different from the first. This local variation in edge quality allows different parts of the aperture to control diffraction differently, preventing the formation of unwanted energy peaks while maintaining effective beam width control.

The invention changes the geometric parameters of the aperture edges by introducing different curvature radii. By modifying the curvature radius parameter at different edges, the diffraction pattern is controlled to eliminate energy intensity peaks. The curvature radius serves as a key parameter that, when optimized, prevents harmful diffraction effects.

The aperture introduces local quality variations through different curvature radii at different edges. This creates a controlled diffraction pattern that distributes energy more evenly, preventing excessive energy concentration that could damage optical components while still maintaining the beam width limitation function.

The invention converts the potentially harmful diffraction effect into a beneficial one by carefully designing the edge curvatures. Instead of trying to eliminate diffraction entirely, the design uses diffraction with controlled edge geometries to achieve a flatter energy profile, turning what is normally a source of energy peaks into a mechanism for energy distribution.