Brewster Window

Brewster window is uncoated substrate used in an optical system at Brewster Angle. It is used to separate the S polarization from the P polarization. Placed at Brewster's Angle the P-Polarization portion of the light will pass through the window 100%, while the S Polarization portion will be 20% reflected.


Specifications

Material

BK7 or UV Fused Silica

Dimension Tolerance

+0.0/-0.2mm

Thickness Tolerance

±0.2mm

Clear Aperture

>90%

Parallelism

<10 arc seconds

Surface Quality

20/10

Wavefront Distortion

<λ/10@633nm

Chamfer

Protected <0.5mmx45deg

Coating

None

Damage Threshold

>20J/cm2, 20ns, 20Hz, @1064nm

 

 

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