Precision ZnSe Windows (CO2 Laser Protective Optics)

Ultra-Low Absorption | 10.6μm High Transmission | OEM Customization

Technical Specifications

Technical ParameterSpecification
SubstrateCVD ZnSe
Design Wavelength10.6 μm (CO2 Laser)
Dimensions (Diameter)Custom (Standard sizes: 12.7mm, 19.05mm, 20mm, 25.4mm, 38.1mm)
Dimensional Tolerance+0.0 / -0.1 mm
Thickness Tolerance±0.1 mm
Surface quality40-20 Scratch-Dig (Standard) to 20-10 (Precision)
Surface Flatness< λ/40 @ 10.6μm
Parallelism< 3 arc minutes (Customizable)
Standard CoatingBBAR @ 10.6μm (R < 0.2% per surface)
Clear Aperture> 90% of central diameter

Product Overview

Essential Protection for High-Power CO2 Lasers

ZnSe windows are critical passive components in industrial CO2 laser systems. Positioned at the output port of the laser cavity or as a protective shield within the beam delivery system, they provide a reliable vacuum seal while allowing the high-energy 10.6μm beam to pass through with virtually zero loss. By isolating the delicate internal optics from harsh manufacturing environments, our ZnSe windows significantly extend the lifespan of your laser equipment.

Thermal Stability for Continuous Operations

In high-power metal cutting and deep engraving applications, any optical absorption converts to heat, which can warp the lens (thermal lensing) or cause catastrophic failure. Our chemical vapor deposition (CVD) grown ZnSe material ensures supreme structural homogeneity and ultra-low absorption, maintaining stable beam quality even during 24/7 continuous industrial operations.

Seamless OEM Integration & Scaling

Whether you require standard 20mm replacement windows for aftermarket maintenance or custom-dimensioned optics for newly developed laser workstations, we deliver tight-tolerance, ready-to-mount components. All edges are professionally chamfered to prevent micro-fractures, ensuring safe handling and perfect O-ring sealing within your optomechanical assemblies.

Metrology & Performance Reports

Figure 1: Transmittance Curve of Double-Sided AR Coated ZnSe Window
Demonstrates an optimized peak transmittance of >99% at precisely 10.6μm, ensuring maximum energy throughput and minimal thermal absorption for high-power CO2 laser systems.

Performance Validation & Metrology Analysis

  • Testing Equipment: FTIR Spectrophotometer
  • Target Wavelength: 10.6μm (Industrial CO2 Laser)
  • Performance Index: Peak Transmittance > 99% @ 10.6μm & Ultra-low bulk absorption.
  • Optical Edge: Precision Broadband Anti-Reflective (BBAR) coating minimizes reflection losses per surface, maximizing laser energy throughput.
  • Benefit: Effectively prevents thermal lensing and structural degradation under high-power conditions, ensuring highly stable beam delivery for continuous metal cutting and industrial material processing.

Leverage Our In-House Metrology Capabilities

Struggling with power loss, thermal lensing, or frequent window replacements in your high-power laser systems? Clarvis Industrial provides comprehensive metrology support, including precise FTIR spectral analysis, absorption testing, and high-durability BBAR coatings. Connect with an expert engineer to finalize your fabrication specs and secure reliable, continuous-operation optics for your manufacturing line.

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