The a|TopShape is an innovative beam shaper which converts collimated Gaussian beams into collimated Top-Hat beams.
Laser beam shapers and mirrors for precise cutting edges
Laser cutting is a thermal separation process, its effectiveness and precision can hardly be surpassed in industrial production. Whether cutting metal, wood, glass or plastic: The fast and gentle laser cutting produces extremely precise cutting edges, even in the production of complex components. The optimal material utilization of laser cutting enables a maximum workpiece yield, which saves costs in material procurement. The extremely precise results of laser cutting consequence in the fact that post-processing of a workpiece produced is hardly necessary, if at all. The results are short machining time with perfect dimensional accuracy at the same time.
The high energy density of the laser beam is used for laser cutting. The beam is focused by a lens system on a very small part of the workpiece. This warms the material to ignition, melting or evaporation temperature. If the material is penetrated, the laser travels along the specified workpiece contour. The actual laser cutting process begins, guided by state-of-the-art technology and special software. Different lasers are used for different materials. A distinction is made between pulsed lasers, which emit the light energy as light flashes, and continuous wave lasers, which emit a continuous laser beam.
A wide variety of optical components are required to generate the laser beam. These include, for example, two flat or curved mirrors enclosing an active laser medium (solid, liquid or gaseous), the so-called resonator. High reflection values, which are essential for the generation of the laser beam, can be guaranteed by high-quality mirror elements as well as reflective or metallic coatings. Thermal stability, constantly high reflectance and very wide wavelength ranges of the mirrors lead to optimum results in optical systems. The laser thus achieves fast and consistently very good performance when cutting various materials.
To cut a material using a laser, an optical system is also required to bundle the laser beam. The bundling increases the power of the beam many times over, enabling the material to be cut so precisely. This lens must counteract very strong heat and still show perfect imaging properties. asphericon offers a wide range of high-quality lenses for your special applications that meet the high laser requirements. Also discover our laser beam shaper a|AiryShape for converting collimated Gaussian beams into different Top-Hat Foci (Top-Hat, Donut, Beam waist).
The a|TopShape LD generates stable Top-Hat beam profiles at working distances of up to 4.5 m. Since the effective working distance decreases with subsequent reduction of the beam size, this a|TopShape is particularly suitable for applications that require smaller beam diameters.
Combined with a focusing lens, the a|AiryShape enables the conversion of collimated Gaussian beams into different focused beam profiles (e.g. Top-Hat, Donut). Thanks to its compact design, it can be easily integrated into existing set-ups.