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China, Chinese 19.05mm High Quality N-Bk7 Optical Window Protective Window for High Energy Laser1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Product DescriptionProduct OverviewHigh-Energy Laser Protective WindowsPurposeShield the focusing lens and other costly optics inside laser-cutting heads from spatter, debris, and airborne contaminants generated during high-power laser processing.Key MaterialUV-grade high-purity fused silica. Power HandlingTested and qualified for continuous operation at ≥ 6 kW CW laser power (10.6 μm & 1 μm wavelengths).Optical PerformanceTransmission ≥ 99.4 % @ 1030–1080 nm (AR-coated)Transmission ≥ 99.0 % @ 9.3–10.6 μm (AR-coated)Wave-front distortion < λ/10 @ 632.8 nm over clear apertureSurface quality 10-5 S-D (MIL-PRF-13830B) UV & Radiation ResistanceNegligible solarization or color-center formation after 1000 h exposure to 250–400 nm UV at 5 kW/cm2.Mechanical / Thermal SpecsOperating temperature –50 °C to +250 °CDamage threshold 15 J/cm2, 10 ns pulse @ 1064 nmCoefficient of thermal expansion 0.54 × 10-6/K (@ 20 °C) Standard Form Factors (others on request)? 25 mm × 1 mm, ? 27.9 mm × 4 mm, ? 38.1 mm × 5 mm, ? 50 mm × 6 mm, ? 55 mm × 2 mm, ? 75 mm × 6 mm.Edge & Coating OptionsGround or beveled edge (0.2 mm × 45°)Dual-band AR coatings: 1030–1090 nm & 9.3–10.6 μmV-type or broadband AR down to 350 nm availableOptional protective DLC or sol-gel anti-smudge over-coat. Quality Assurance100 % interferometer inspectionCertified to ISO 10110 & RoHS compliantLot-traceable fused-silica melt data supplied. ApplicationsFiber, disk, and CO2 laser cutting heads; welding; cladding; additive manufacturing; high-power UV-laser systems.Key FeaturesKey Features & Technical Implications of High-Energy Laser Protective WindowsThese features describe a high-performance laser window, likely made from a material like fused silica or ZnSe, and optimized for 1064 nm laser systems (common in Nd:YAG lasers). Here's a concise summary and technical interpretation:FeatureTechnical Benefit>99.7% transmittance @ 1064 nmMinimal energy loss, ideal for high-power laser systems.Anti-reflective (AR) coatingReduces Fresnel reflections (typically <0.2% per surface), prevents ghost beams, and protects the laser source from back-reflection damage.Ultra-low wavefront distortionMaintains beam quality (M2), critical for precision applications like lidar, laser marking, or microscopy.SpecificationMaterial:Fused Silica, SapphireDimensions:from 2mm to 500mm, customized according to requirementsThickness1 to 50mm (subject to dimensions)Dimension/Thickness Tolerance:up to 0.02mmParallelism:up to 3arcsecFlatness:up to 1/10L PV@633nmSurface Quality:up to 10-5Clear Aperture:>90% centeredCoatings:AR coating from UV-IRLIDT:>33J/cm2@1064nm, 5.4ns, 10HzInspectionsFactory Advantages1. Over 17 Years ProducedCertificate ApprovedQuality Warranted24+ Service ProvidedOEM/ODM Customized2. Advanced Equipment Rich Industry Experience Excellent Working Team Full Production Inspection OEM/ODM Services Available Immediate Response3. Company: Over 17 years production experience in optical industry. Team: Experienced working team.Price: Win-win is the only goal. We focus on not only the present but also the future.Quality: High-quality products are guaranteed by our Quality Assurance Management System.Service: Offer our customers end-to-end 24-hour trustworthy pre-sales and after-sales service and solution.Company ProfileCertifications
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