Laser Windows – High-Performance Optical Solutions for Demanding Applications
custom optical components
3/4/20252 min read
At Changchun Positive Optics, we design and manufacture precision laser windows that deliver exceptional optical performance, durability, and reliability across a wide range of industries. Whether you’re working with high-power industrial lasers, medical devices, or cutting-edge research systems, our laser windows are engineered to meet the most stringent requirements.
What Are Laser Windows?
Laser windows are specialized optical components that protect sensitive laser systems while allowing precise transmission of laser beams. They act as barriers against contaminants, moisture, and mechanical stress, ensuring consistent performance in harsh environments. Key functions include:
- Beam Transmission: Minimize energy loss with high transmission rates across specified wavelengths.
- Environmental Protection: Shield internal optics from dust, humidity, and chemical exposure.
- Thermal Management: Withstand high-power laser irradiation without deformation or damage.
Key Features of Our Laser Windows
1. Material Excellence:
- Fused Silica: Ideal for UV to NIR applications, offering low thermal expansion and high laser damage threshold.
- Sapphire: Exceptional hardness and broadband transmission (UV to Mid-IR), perfect for high-durability needs.
- ZnSe (Zinc Selenide): Optimized for CO₂ laser systems (8–14 μm wavelength) with superior transmission efficiency.
- Custom Materials: Available upon request for unique spectral or environmental requirements.
2. Advanced Coatings:
- Anti-Reflective (AR) Coatings: Reduce surface reflection to >99.5% transmission at target wavelengths.
- Protective Coatings: Enhance resistance to abrasion, humidity, and chemical corrosion.
- Laser Damage Threshold: Up to 10 J/cm² (1064 nm, 10 ns pulse) for high-power applications.
3. Precision Engineering:
- Surface Flatness: λ/10 at 633 nm.
- Parallelism: <1 arcminute.
- Diameter Tolerance: ±0.1 mm.
Applications of Laser Windows
Our components are trusted in critical applications worldwide:
- Industrial Lasers: Protect cutting, welding, and marking systems from debris and thermal stress.
- Medical Devices: Ensure precision in surgical lasers and diagnostic equipment.
- Aerospace & Defense: Meet MIL-spec standards for ruggedized laser targeting and communication systems.
- Scientific Research: Enable reliable performance in spectroscopy, LIDAR, and quantum optics setups.
Why Choose Changchun Positive Optics?
1. Custom Solutions: Tailor laser windows to your exact specifications—size, material, coating, and mounting options.
2. Rapid Prototyping: Accelerate development with sample delivery in as little as 2 weeks.
3. Quality Assurance: ISO 9001-certified manufacturing with rigorous inspection (interferometry, spectrophotometry).
4. Global Support: Technical expertise and logistics networks serving clients in 30+ countries.
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Technical Specifications at a Glance
| Parameter | Fused Silica | Sapphire | ZnSe |
|---------------------|--------------------|--------------------|--------------------|
| Wavelength Range | 0.2–2.2 μm | 0.15–5.5 μm | 0.5–14 μm |
| Laser Damage Threshold | 10 J/cm² (1064 nm) | 5 J/cm² (1064 nm) | 2 J/cm² (10.6 μm) |
| Thermal Conductivity | 1.4 W/m·K | 25 W/m·K | 18 W/m·K |
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Request a Quote or Consultation
Ready to enhance your laser system’s performance? Contact our optical engineering team today to discuss your project needs or request a custom quote.
Precision Optics, Engineered for Tomorrow’s Challenges – Changchun Positive Optics!!!