Visible light band | optical dome
Infrared band | optical dome
UV band | optical dome
General application | optical dome
Special application | optical dome
Aspheric Lens
Spherical Lens
Cylindrical Lenses
Optical Window
Reflecting Mirror
Optical Prism
Infrared (IR) Lens
Large-diameter Visible Lens
Optical Mechanics
Comany Profile
Service
Workshop
Quality Control
Custom Fused Silica Optical Windows for Laser Systems: High Thermal Stability | China Suppliers & Factory
Optical Window
1. Core Functions
- Environmental Isolation: Seals vacuum, high-pressure, or corrosive environments while transmitting 190nm–2.1μm light with >92% efficiency.
- Laser Resistance: Fused silica substrates withstand high-power laser damage (LIDT >10J/cm² @1064nm, 10ns) for CO₂, YAG, and femtosecond lasers.
2. Technical Specifications
- Material Properties: Fused Silica (Thermal expansion 0.55×10⁻⁶/°C, softening point 1580°C, superior UV transmission vs. N-BK7).
- Precision (High-Grade): Surface flatness λ/10 (@632.8nm), wavefront distortion λ/20 per 25mm; Thickness tolerance ±0.005mm, diameter +0.01/-0.01mm, parallelism <1 arcsec; Clear aperture 100%, scratch/dig 20/10 (upgradable to 10/5).
- Coatings: AR Coatings (Single/dual-sided for 193nm–10.6μm, e.g., 355nm, 1064nm, 10.6μm); High-LIDT Coatings (Compatible with >1kW CW or >100mJ pulsed lasers).
3. Applications
- Laser Processing: Output windows for fiber lasers to shield internal optics.
- Spectroscopy: VUV spectrometer windows for high transmission and low scatter.
- Harsh Environments: Observation windows for high-temperature furnaces or radiation-resistant sensors in aerospace.
4. Customization
- Non-Standard Sizes: Custom shapes (square, annular), bevels 0.3±0.2mm×45°, or edge treatments.
- Hybrid Windows: Combined with sapphire or CaF₂ for multi-band splitting or AR optimization.
- Fast Delivery: Standard orders in 5 days, special coatings/sizes <3 weeks.
Product Parameter
Ultra-Low Wavefront Distortion
λ/20 surface accuracy for interferometers or excimer lithography systems.
Extreme Environment Durability
Stable performance under 10⁻⁶ Torr vacuum or 500°C with zero outgassing/deformation.
Custom & OEM Process
Materials capabilities
Coating capabilities
Advanced Equipment
Custom Sizes and Shapes
Quality Assurancetesting
Experienced Team
Company Introduction
Q&A
Yes, we are a professional manufacturer of optical components, we have more than 20 years experience in optical cold working.
No MOQ for customer if our product is in stock, or 1-10pcs.
Yes, we can custom the material, specifications and optical coating for your optical components as your requirement.
Just send us your requirements, then we will send samples accordingly.
Generally, we need 1-2 days to finish the sample production. For inventory, the delivery time is 1-3 working days. For customized products, the delivery time is 7 to 25 working days according to the quantity.
More than four times quality inspect during production process, we can provide the Quality test report.
Freight
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