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Products: Fused Silica Laser Windows

Fused Silica Laser Windows image

Acton Optics & Coatings windows are made from select grades of the finest available optical materials. VUV/UV windows are suitable for a large range of VUV-UV applications. Flat laser windows are suitable for high-power laser applications and as substrates for mirrors and beamsplitters.

Note: Excimer-grade CaF2 and MgF2 substrates are available for laser cavity optics and are also available with transmittance traces for an additional charge. Contact us at [email protected] for more information.


Fused Silica Laser Windows

Part Number Diameter Thickness Substrate Material
W.5D-FL 0.5” (12.7mm) 0.250” (6.35mm) Corning 7980 0C or equivalent
W1D-FL 1.0” (25.4mm) 0.250” (6.35mm) Corning 7980 0C or equivalent
W1.5D-FL 1.5” (38.1mm) 0.200” (5mm) Corning 7980 0C or equivalent
W2D-FL 2.0” (50.8mm) 0.375” (9.53mm) Corning 7980 0C or equivalent


Material UV Laser-Grade Fused Silica
Diameter Tolerance +0.00/-0.005”
Thickness Tolerance +/-0.25mm
Surface Figure Both sides 1/10 Wave @ 632.8nm
Parallelism 3 arc min
Scratch/Dig 20-10
Chamfer 0.5mm x 45°
Clear Aperture Central 85%

Acton Optics & Coatings can supply custom optics for your OEM applications.

UV laser grade fused silica transmission properties