Large Diameter Fused Silica Optical Window
Large diameter fused silica optical windows are precision optical components manufactured from high purity synthetic fused silica substrates. Due to their excellent UV transmission, low thermal expansion coefficient, high optical homogeneity, and superior thermal stability, fused silica windows are widely used in large aperture optical systems, high power laser systems, semiconductor inspection equipment, and scientific instruments. Compared with standard optical glass, fused silica provides outstanding performance in demanding environments where high transmission, dimensional stability, and resistance to thermal stress are required. Chenyu Optics provides custom large diameter fused silica windows with various sizes, thicknesses, surface qualities, flatness requirements, and anti-reflection coating options for UV, visible, NIR, and broadband optical applications.
Large Diameter Fused Silica Optical Window Overview
Large Diameter Fused Silica Optical Windows are precision optical components manufactured from high purity synthetic fused silica substrates, offering excellent UV transmission, low thermal expansion, high optical homogeneity, and superior thermal stability.
Fused silica windows are widely used in large aperture optical systems, high power laser systems, semiconductor inspection equipment, and scientific instruments. Compared with standard optical glass, fused silica provides outstanding performance in demanding environments where high transmission, dimensional stability, and resistance to thermal stress are required. Its excellent UV transmission makes it particularly suitable for UV optical systems, while its low absorption and high laser damage resistance support high energy laser applications.
Chenyu Optics provides custom large diameter fused silica windows with various sizes, thicknesses, surface qualities, flatness requirements, and anti-reflection coating options. These windows can be customized for UV, visible, NIR, and broadband optical applications.
Window diameter, thickness, optical specifications, edge requirements, and coating designs can be tailored according to customer application requirements.
Key Advantages of Large Diameter Fused Silica Optical Window
High Power Laser & UV Optical Systems
Large diameter fused silica windows provide high-transmission, thermally stable optical access for high power laser systems, UV laser systems, semiconductor inspection equipment and aerospace optical assemblies.
Typical Specifications of Large Diameter Fused Silica Optical Window
| Material | Fused Silica (Synthetic Quartz) |
|---|---|
| Product Type | Large Diameter Optical Window |
| Optical Function | UV / Visible / NIR Transmission |
| Transmission Range | Approximately 0.18–2.5 μm |
| Operating Wavelength | Customized |
| Diameter / Size | Customized, large diameter capability available |
| Thickness | Customized |
| Surface Quality | 10-5 / 20-10 / 40-20 Scratch-Dig |
| Surface Flatness | λ/10, λ/4 or customized |
| Parallelism | Customized |
| Edge Finish | Ground / Chamfered / Customized |
| Coating | UV AR / VIS AR / NIR AR / Broadband AR |
Spectral Transmission Curve (Typical)
Why Choose Chenyu Optics for Large Diameter Fused Silica Optical Window
Chenyu Optics manufactures high purity fused silica optical substrates into large diameter round and rectangular windows, with custom diameter and thickness machining, precision optical polishing, high surface quality control, and flatness and parallelism control. Our UV, VIS, NIR, and broadband AR coating fabrication is supported by optical inspection and measurement, from prototype through volume production.
Manufacturing Capability for Large Diameter Fused Silica Optical Window
Precision Polishing
Fused silica substrate polishing with tight flatness, parallelism, surface quality and dimensional tolerance control for large diameter round and rectangular windows.
UV / VIS / NIR / Broadband AR Coating
Precision AR coating fabrication optimized for operating wavelength, angle of incidence, polarization and transmission target.
Inspection & Packaging
Optical inspection and measurement according to agreed requirements, followed by protective optical packaging suited to large aperture parts.
Available AR Coating Options
Fused Silica Window vs Standard Optical Glass Window
| Property | Fused Silica Optical Window | Standard Optical Glass Window |
|---|---|---|
| UV Transmission | Excellent UV transmission, approximately 0.18–2.5 μm | Limited UV transmission compared with fused silica |
| Thermal Expansion | Extremely low thermal expansion coefficient | Higher thermal expansion, more susceptible to thermal stress |
| Thermal Stability | Superior thermal stability and excellent thermal shock resistance | Lower thermal stability under demanding operating conditions |
| Laser Damage Resistance | High laser damage resistance, suitable for high power laser applications | Generally lower laser damage threshold |
| Typical Applications | High power laser systems, UV laser systems, semiconductor inspection, scientific instruments | General imaging and cost-sensitive optical systems |
Manufacturing Notes for Large Diameter Fused Silica Windows
Applications and Selection Considerations
High Power Laser Systems
Provides high-transmission, thermally stable optical access with high laser damage resistance.
UV Laser Systems
Supports UV laser optical paths requiring excellent ultraviolet transmission.
Semiconductor Inspection Equipment
Used in semiconductor inspection, photolithography and wafer inspection systems.
Scientific Research Instruments
Serves demanding research applications requiring high optical homogeneity and stability.
Aerospace Optical Systems
Suited to aerospace optical assemblies requiring dimensional stability under thermal stress.
Imaging & Optical Measurement Equipment
Provides stable, high-transmission optical access for imaging and optical measurement equipment.
Large Diameter Fused Silica Optical Window FAQ
What are the advantages of fused silica windows compared with optical glass windows?
Fused silica provides better UV transmission, lower thermal expansion, and higher thermal stability compared with standard optical glass, making it suitable for demanding optical and laser applications.
What wavelength range can fused silica windows transmit?
Synthetic fused silica typically provides transmission from the deep UV region around 180 nm to the near infrared region around 2.5 μm, depending on material grade and thickness.
Are large diameter fused silica windows suitable for laser systems?
Yes. Fused silica is widely used in high power laser systems due to its low absorption, excellent thermal stability, and high laser damage resistance.
Can large diameter fused silica windows be coated?
Yes. Chenyu Optics provides customized UV AR, visible AR, NIR AR, and broadband AR coatings according to wavelength and application requirements.
What sizes of fused silica windows can be manufactured?
Large diameter fused silica windows can be customized according to customer drawings and application requirements, including diameter, thickness, flatness, and surface quality specifications.
What information should I provide for a quotation?
Please provide the material grade requirement, window diameter or dimensions, thickness, operating wavelength, application type, required transmission, surface quality, surface flatness, parallelism, edge requirement, coating requirement, angle of incidence and quantity.
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Need Large Diameter Fused Silica Windows?
Need large diameter fused silica windows for laser, semiconductor, or scientific optical systems? Contact Chenyu Optics with your required dimensions, wavelength range, surface specifications, flatness, coating requirements, and quantity for technical evaluation and quotation.