Stepped Window
The stepped window is an optical window with a stepped structure made of Broussonetia papyrifera, typically fabricated using optical materials such as quartz glass, ZnS, and Si.
Description
By designing different step heights, widths, and shapes, specific optical functions such as optical filtering and beam shaping can be achieved, while also improving the mechanical strength and stability of the window plate.
It is commonly used in the field of laser technology as an optical component in laser resonators to optimize the quality and characteristics of the laser beam.
Specifications
| Diameter Tolerance: | +0.0/-0.1mm |
| Thickness Tolerance: | ±0.1mm/±0.005mm |
| Clear Aperture: | >85%,>95% |
| Parallelism: | 3 min , 10 sec |
| Surface Quality: | 60-40/10-5 |
| Flatness: | λ /2 , λ/8 , λ/10 |
| Bevel Protective: | <0.25mm X 45° |
| Coating: | Optional |
FAQs
1. What is your MOQ for stepped window?
Our standard MOQ is 50 pieces for regular production.
For small orders (≤50 pcs), we can still accept production and provide full inspection reports and measurement data for each piece upon request.
2. Do you support small batch or prototype orders?
Yes. We support small batch and prototype production for testing and evaluation before mass production.
3. What is your production lead time?
- Standard polished fused silica windows: 4–5 weeks
- Coated optical windows (AR / HR): 5–6 weeks, depending on coating type and specifications
4. Do you provide inspection reports?
Yes. We provide quality inspection reports based on order quantity:
- ≤50 pcs: Full inspection data for each piece available
- 100–1,000 pcs: 5%–10% random sampling inspection reports
- >1,000 pcs: 0.5% sampling inspection reports
All inspection data includes dimensional and surface quality parameters.
5. What coating options are available?
We offer:
- Anti-Reflection (AR) coatings
- High-Reflection (HR) coatings
- Broadband coatings
- Custom wavelength coatings (UV / Visible / IR)
6. Can you manufacture custom sizes and shapes?
Yes. We support OEM manufacturing according to drawings.
Available shapes include:
- Round
- Square
- Rectangular
- Stepped
- Wedged
- Drilled / special structures
7. What quality certifications do you have?
We are certified under international quality management systems, including:
- ISO 9001 Quality Management System
- IATF 16949 Automotive Quality System
- Good Standardization Practices Certification
We also apply strict internal quality control processes, including dimensional inspection, surface quality testing, and coating performance verification before shipment.
