Flat-wedge windows
Main features
- Fabricated from high-quality, laser grade polished UV grade fused silica, BK7 glasses
- Standard diameters are ø12,7 mm, ø25,4 and ø50,8 mm
- Wedge angle selection from 0,5° to 3°
- Coatings, custom substrate material, dimensions are available upon request
Application examples
- Protection from undesirable laser cavity feedback
- Elimination of fringe pattern due to back reflections
- Variable beam steering
- Beam sampling
Request custom
View stock
- Description
- Standard specifications
Windows with a slight wedge are commonly used to prevent harmful laser cavity feedback and beam interference effects. Standard 4Lasers uncoated flat-wedge windows are fabricated from BK7 and UV grade fused silica optical glass. UV grade fused silica glass flat-wedge window is a good option for UV, ultrashort pulse, and high-power laser applications because of low sensitivity to temperature variations, relatively high damage threshold, and UV transmission down to 185 nm. The BK7 glass window is a cost-effective choice for visible and near-infrared range, low/mid-power laser, and non-laser applications.
Flat-wedge windows | |
---|---|
Substrate material | BK7, UVFS |
Wavelength range | Uncoated BK7 windows: 350 nm - 2 μm Uncoated UVFS windows: 185 nm - 2,1 μm |
Clear aperture | >85% |
Diameter tolerance | +0,0/-0,15 mm |
Thickness tolerance | ±0,25 mm |
Wedge tolerance | ±5 arcmin |
Protective chamfers | <0,35 mm at 45° |
Surface quality | ⌀≤25,4 mm: 10-5 S-D ⌀>25,4 mm: 20-10 S-D |
Surface flatness | ⌀≤25,4 mm:<λ/8@632,8 nm ⌀>25,4 mm:<λ/5@632,8 nm |
Coatings | Uncoated, available upon request |
Order your item
Material
Diameter
Thickness
Wedge
SKU
PRICE
QUANTITY
UVFS
12,7 mm
5 mm
0,5°
6225
20 €
UVFS
25,4 mm
3,1 mm
1°
6274
32 €
UVFS
25,4 mm
6,35 mm
3°
6275
32 €
UVFS
50,8 mm
6,35 mm
1°
6276
74 €
BK7
12,7 mm
5 mm
0,5°
6277
18 €
BK7
25,4 mm
3 mm
1°
6278
30 €
BK7
25,4 mm
6,35 mm
3°
6279
30 €
BK7
50,8 mm
6,35 mm
1°
6280
54 €
1
/1
Show all