Fused Silica Optical Dome
Fused Silica Optical Domes are manufactured from high-purity fused silica (SiO₂). Their excellent ultraviolet transmission, outstanding thermal stability and high environmental durability provide reliable optical protection for laser, imaging, sensing and aerospace systems.
Fused Silica Optical Dome Overview
Fused Silica Optical Domes are precision protective optical components manufactured from high-purity fused silica (SiO₂). The material provides excellent ultraviolet transmission, low optical absorption and stable performance across UV, visible and near-infrared wavelengths.
An extremely low thermal expansion coefficient allows fused silica domes to maintain their geometry and optical performance during temperature changes. High laser damage resistance also makes them suitable for demanding laser and scientific optical systems.
Chenyu Optics manufactures custom fused silica domes according to customer drawings, including customized diameter, wall thickness, dome geometry, surface accuracy, surface quality and UV, VIS or NIR antireflection coatings.
Key Advantages of Fused Silica Optical Domes
Laser, UV Imaging & Sensor Protection
Fused silica domes protect sensitive optical assemblies while maintaining high transmission, low distortion and stable optical performance in demanding environments.
Typical Specifications of Fused Silica Optical Dome
| Material | High-Purity Fused Silica (SiO₂) |
|---|---|
| Optical Function | Protective optical window / dome window |
| Dome Type | Fused Silica Optical Dome |
| Transmission Range | UV–NIR, material grade dependent |
| Thermal Expansion | Very low |
| Laser Damage Resistance | Excellent |
| Diameter | Customized |
| Dome Shape | Customized |
| Surface Accuracy | λ/10 @ 633 nm |
| Surface Quality | 20-10 / 40-20 scratch-dig |
Dome Geometry & Optical Principle
Why Choose Chenyu Optics for Fused Silica Optical Domes
Chenyu Optics supports drawing-based fused silica dome manufacturing for laser, ultraviolet, sensing and aerospace optical systems, from prototype verification through repeat production.
Manufacturing Capability for Fused Silica Optical Domes
Precision Dome Polishing
Controlled fused silica dome shaping and polishing for custom curvature, wall thickness, surface accuracy and surface quality.
Optical AR Coating
UV, visible, near-infrared and custom AR coatings designed according to the operating wavelength, laser power and incident angle.
Inspection & Packaging
Dimensional, surface and optical inspection followed by clean handling and protective packaging for precision dome components.
Coating Options for Fused Silica Optical Domes
Uncoated Fused Silica
Suitable when the natural UV, visible and near-infrared transmission of fused silica meets the optical system requirements.
UV AR Coating
Optimized to reduce reflection and improve transmission efficiency in ultraviolet imaging, sensing and laser systems.
VIS, NIR & Custom AR Coatings
Designed for visible, near-infrared or customer-specified wavelength ranges, incident angles and environmental conditions.
Fused Silica Optical Dome Coating Selection
| Option | Typical Range | Recommended Use | Design Note |
|---|---|---|---|
| Uncoated | Natural fused silica range | Broadband systems and prototypes | Natural surface reflection remains |
| UV AR | Customer-specified UV range | UV imaging, sensing and laser systems | Specify operating wavelength and laser conditions |
| VIS AR | Visible wavelength range | Imaging and optical sensor systems | Reduces visible surface reflection |
| NIR AR | Near-infrared wavelength range | NIR imaging and detection systems | Optimized for the specified incident angle |
| Custom AR | Customer specified | Laser and multispectral systems | Specify wavelength, AOI, power and environment |
Applications of Fused Silica Optical Domes
Laser Systems
Protective optical domes for high-power and precision laser assemblies.
UV Imaging
High-transmission dome windows for ultraviolet imaging systems.
Optical Sensors
Environmental protection for sensitive optical sensor assemblies.
Aerospace Optics
Thermally stable protective windows for aerospace optical systems.
High-Power Lasers
Low-absorption optical protection for high-power laser environments.
Scientific Research
Precision fused silica components for laboratory optical equipment.
Industrial Protection
Durable optical protection for industrial monitoring systems.
Precision Instruments
Stable optical windows for high-accuracy imaging instruments.
Fused Silica Optical Dome FAQ
What is a fused silica optical dome used for?
A fused silica optical dome protects sensitive optical assemblies while maintaining high transmission and stable performance in laser, UV imaging, sensing and precision optical systems.
Why is fused silica suitable for optical domes?
Fused silica offers excellent ultraviolet transmission, very low thermal expansion, low optical absorption, high laser damage resistance and outstanding optical stability.
Are fused silica optical domes suitable for laser applications?
Yes. Fused silica is widely used in laser systems because of its high laser damage threshold, low absorption and excellent thermal stability. The exact material grade and coating should be selected according to the laser wavelength and power.
Can fused silica optical domes be customized?
Yes. Chenyu Optics provides customized diameters, dome shapes, curvature, wall thickness, surface accuracy, surface quality and UV, VIS or NIR AR coating solutions.
Handling & Manufacturing Notes
Need Custom Fused Silica Optical Domes?
Send us your drawing, diameter, dome geometry, wall thickness, surface requirements, operating wavelength, laser parameters, coating specification and quantity. Chenyu Optics will review your requirements and provide a suitable fused silica dome manufacturing solution.