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Diffractive Optical Element

Holo/Or Ltd., Laser Components GmbHRequest Info
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OLCHING, Germany, June 27, 2018 — Diffractive Optical ElementHolo/Or, the industrial partner of Laser Components GmbH, has developed a diffractive optical element (DOE) that significantly accelerates the laser brazing process for hot-dip galvanized metal sheets.

The element provides better melting performance and cleaner edges. The DOE, made of UV-fused silica, has an efficiency of 90 percent. It splits the incoming beam into three beams with different diameters and power levels. Two smaller stripping beams ensure that the zinc coating is preheated, cleaned, and preconditioned for brazing. The large center beam performs the actual brazing process.

The element’s homogeneous energy distribution ensures that the brazing material is melted evenly. Previously, similar results could only be achieved with several lasers or complex optomechanical elements.
Jun 2018

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