China High Power CO₂ Laser Window | Zinc Selenide Protective Window, 45° AOI, AR Coated Available Manufacture and Factory

High Power CO₂ Laser Window | Zinc Selenide Protective Window, 45° AOI, AR Coated Available

This series of ZnSe protective windows is specifically designed for high-power CO₂ laser systems operating at 10.6μm. Made from premium zinc selenide (ZnSe), these windows offer excellent thermal resistance and low absorption, making them ideal for demanding applications such as laser cutting, engraving, welding, and medical laser equipment.

Key Specifications:

Surface quality: 40-20 scratch/dig
Surface flatness: λ/4 per 1″ diameter @632.8nm
Parallelism: ≤3 arc minutes
Clear aperture: >90%
Diameter tolerance: +0/-0.13mm
Thickness tolerance: ±0.25mm
Angle of incidence: 45°

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The WZ series is available in a wide range of standard diameters from 12.7mm to 180mm and thicknesses from 2.0mm to 6.0mm (see part numbers WZ-0.5-2 through WZ-180-6). These CO₂ laser windows are commonly used as protective windows in laser cutting heads, beam delivery systems, and optical enclosures to shield internal optics from debris and spatter while maintaining high transmission at 10.6μm.

Although the base ZnSe substrate provides good transmission in the infrared, we recommend adding a dual-band AR coating (e.g., <0.2% reflectance per surface at 10.6μm) to maximize throughput and minimize thermal lensing. Custom coatings and sizes are available upon request.

Whether you need a standard zinc selenide protective window for a 1.5″ CO₂ laser head or a large 180mm window for industrial beam shaping, our WZ series delivers consistent optical performance, durability, and fast lead times. Protect your CO₂ laser investment with our precision-engineered ZnSe optics.