Precision windows
Ideal for interferometer flats, laser windows, beamsplitter substrates, or parallel plates.
Material: BK7 and Fused silica typically. Other Glass, Sapphire, Quartz, Germanium(Ge), Silicon(Si) are also available.
General Specifications
Dimension(mm): | Dia12.7 | 12.7x12.7 | Dia25.4 | 25.4x25.4 |
| Dia50.8 | 50.8x50.8 | upon request |
|
|
Thickness: |
| Per request |
Dimension Tolerance: |
| +/- 0.1mm |
Surface Quality: |
| 20-10 scratch and dig |
Surface Flatness: |
| λ/4 up to λ/10 @ 633 nm |
Transmitted Wavefront Error: |
| λ/4 up to λ/10 per inch |
Parallelism: |
| < 3 arc min up to 5 arc sec |
AR Coating Range: | 350-700nm | 650-1050nm |
| 1050-1700 | Per Request |
|
Reflectance over AR Coating Range: |
| Ravg < 0.5% or R<0.2%@single wavelength |
Clear Aperture: |
| >90% |
Substrate: |
| N-BK7/H-K9L |
Commercial Quality Windows
Non-precision windows commonly used for sight glasses, instrument windows, beamsplitter substrates, vacuum windows, etc.
Specifications:
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.2mm
Clear Aperture: >85%
Parallelism: 1'
Surface Quality: 60-40 scratch and dig
Flatness: λ/4 @632.8nm
Protective Bevel
AR coating is available by request.
R<0.2%@single wavelength
Ravg<0.5%@broadband wavelength range
Laser Windows
With perfect surface polishing, the window have extremly smooth surface to fit fot the high power application.
It also can be used as substrate for laser mirror, laser coupler, etc.
Material: BK7 or Fused silica
Specifications:
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.2mm
Clear Aperture: >85%
Surface Quality: Better than 10-5
Flatness: Better than λ/10 @632.8nm
Parallelism: up to 5"
Protective Bevel
High damage threshold AR coating is availabe.
e.g. Damage threshold >2GW/cm^2 (pulse laser) or >5KW/cm^2 (CW laser) for AR coating at 1064nm.
Customer designed special windows are available!
Address：Haoyue Road Luyuan District,Changchun City,
Jilin Province ，P. R. China
Email：sales@ocean-opto.com
Tel：86-431-87631960
