Fuyao Quartz manufactures high-precision fused silica quartz windows made from high-purity JGS1 and JGS2 quartz materials. These optical windows provide excellent transmission performance across the ultraviolet to near-infrared spectrum from 190 nm to 2500 nm.

With strict thickness control of 8.2 mm and 8.3 mm (±0.1 mm tolerance), the windows are designed for precision optical systems requiring stable optical performance, low thermal expansion, and high environmental durability.

Fused silica windows are widely used in laser systems, semiconductor equipment, spectroscopy instruments, and vacuum optical viewports. Custom sizes, coatings, and surface finishes are available to meet specific optical and industrial requirements.

Key Specifications

Key Features of Fused Silica Optical Windows

High Optical Transmission

Fused silica provides excellent transmission from deep ultraviolet to near-infrared wavelengths (190 nm – 2500 nm), making it ideal for precision optical systems.

Outstanding Thermal Stability

With an extremely low thermal expansion coefficient (5.5 × 10⁻⁷ /°C), fused silica windows maintain dimensional stability under high temperatures and rapid thermal changes.

Strong Chemical Resistance

Quartz optical windows are highly resistant to acids, alkalis, and organic solvents, ensuring long-term stability in harsh industrial environments.

High Laser Damage Threshold

These optical windows are compatible with high-energy laser systems such as UV lasers and CO₂ lasers, supporting demanding laser processing and research applications.

Precision Optical Quality

Advanced polishing and inspection processes ensure excellent surface flatness, low impurity levels, and high optical homogeneity.

Applications of Quartz Optical Windows

Laser Systems

Used as protective windows in high-power laser equipment, medical lasers, and laser processing machines.

Spectroscopy Instruments

Applied in UV-Vis spectrometers, FTIR systems, and analytical optical equipment.

Semiconductor Manufacturing

Widely used in semiconductor lithography systems, wafer inspection equipment, and plasma processing chambers.

Scientific Research

Used as observation windows in vacuum chambers, plasma experiments, and high-energy physics instruments.

Aerospace and Medical Equipment

Quartz optical windows protect sensitive optical sensors and are also used in specialized medical optical devices.

Custom Quartz Optical Window Solutions

Fuyao Quartz offers customized fused silica optical windows based on specific project requirements.

Customization options include:

• Custom diameter and thickness
• Precision edge chamfering and polishing
• Optical coatings (AR / HR / broadband coatings)
• High surface quality options (20/10)
• Vacuum compatible optical windows

Our manufacturing process includes precision CNC machining, optical polishing, interferometer testing, and strict quality inspection to ensure reliable optical performance.

FAQ – Quartz Optical Windows

1. What is the transmission range of fused silica optical windows?
Fused silica optical windows typically provide high transmission from 190 nm to 2500 nm, covering ultraviolet, visible, and near-infrared wavelengths.

2. What is the difference between JGS1 and JGS2 quartz materials?
JGS1 offers better ultraviolet transmission and is suitable for UV optical systems, while JGS2 is commonly used for visible and infrared optical applications.

3. Can the thickness and diameter be customized?
Yes. Fuyao Quartz supports custom thickness, diameter, edge processing, and optical coatings according to customer specifications.

4. Are coatings available for quartz optical windows?
Yes. Anti-reflection coatings, reflective coatings, and wavelength-specific coatings can be applied depending on the optical application, wavelength range, and system performance requirements.

5. What industries use fused silica optical windows?
They are widely used in laser equipment, semiconductor manufacturing, spectroscopy instruments, aerospace systems, and scientific research devices.