Protective Windows for High Power Lasers

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Protective Windows for High Power Lasers
Protective windows for diode pumped solid state lasers and high power fiber lasers.

Coatings Both faces are anti-reflective coated
Diameter Tolerance, mm +0.0/-0.1 mm
Laser Damage Threshold, J/cm² >20 J/cm2 @ 1064 nm, 3 ns, 10 Hz
Material Fused Silica
Thickness Tolerance, mm +/-0.1 mm


Every laser cutting, welding and drilling system consist of multiple optical components. Being one of the simplest optical components of the system, protective windows at the same are time crucial for securing smooth operation of laser system. Protective windows are highly recommended for shielding more expensive optical components like focusing lenses from splatter and debris during laser processing. All windows are laser grade polished and made of high purity fused silica, thus are suited for usage under power rates exceeding several kW. Anti – reflective (AR) coatings help to prevent back reflections of a laser beam and increase processing efficiency. While uncoated windows reflect 3 % of light per surface, AR coated windows reflect only 0.1 % - 0.2 % per surface. Laserand presents list of lens protective windows for most of commercially available industrial laser machines.
  • Long life time
  • High laser induced damage threshold
  • Every window is packaged individually
  • High surface quality and low wavefront distortion
Name Dimensions, mmSystems made byThickness, mm Price Quantity

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