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Sales engineer
Arminas Butkus +370 5 219 4884
Flat-wedge windows
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Flat-wedge windows

Main features

Fabricated from high-quality, laser grade polished UV grade fused silica, BK7 glasses

Standard diameters are ⌀12,7 mm, ⌀25,4 and ⌀50,8 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 common to use for prevention of 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 windows is a good option for UV, ultrashort pulse and high-power laser applications by reason of low sensitivity to temperature variations, relatively high damage threshold and UV transmission down to 185 nm. BK7 glass windows is a cost-effective choice for visible and nearinfrared 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/-0,15 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/[email protected],8 nm
⌀>25,4 mm:<λ/[email protected],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 mm
6274
32 €
UVFS
25,4 mm
6,35 mm
6275
32 €
UVFS
50,8 mm
6,35 mm
6276
74 €
BK7
12,7 mm
5 mm
0,5°
6277
18 €
BK7
25,4 mm
3 mm
6278
30 €
BK7
25,4 mm
6,35 mm
6279
30 €
BK7
50,8 mm
6,35 mm
6280
54 €