Overview: Brewster Windows are uncoated substrates that can be used in series
as polarizers, or to clean up a partially polarized beam. When
positioned at Brewster's Angle, the P-polarized component of the
light enters and exits the window without reflection losses, while
the S-polarized component is partially reflected. Brewster Windows are primarily used in laser cavities to produce a
beam with a high degree of polarization purity. When unpolarized
light is incident on an uncoated substrate at Brewster's Angle, the
reflected portion is completely S polarized and the transmitted
portion is partially P polarized. General Specifications Of Brewster Window: | Material | BK7 Grade A, UV Grade Fused Silica | | Dimension Tolerance | +0.0/-0.2mm | | Thickness Tolerance | ±0.2mm | | Surface Quality | 20/10 | | Clear Aperture | >90% | | Wavefront Distortion | <λ/10@633nm | | Parallelism | <10 arc seconds | | Chamfer | Protected<0.5mmx45° | | Coating | None | | Damage Threshold | >20J/cm2, 20ns, 20Hz, 1064nm |
Standard Products Of Brewster Window: | PN. | Material | Diameter (mm) | Thickness (mm) | | BRW0802 | BK7 | 8.0 | 2.0 | | BRW1002 | BK7 | 10.0 | 2.0 | | BRW1302 | BK7 | 13.0 | 2.0 | | BRW1602 | BK7 | 16.0 | 2.0 | | BRW2002 | BK7 | 20.0 | 2.0 | | BRW2502 | BK7 | 25.0 | 2.0 | | BRW0802-FS | UVFS | 8.0 | 2.0 | | BRW1002-FS | UVFS | 10.0 | 2.0 | | BRW1302-FS | UVFS | 13.0 | 2.0 | | BRW1602-FS | UVFS | 16.0 | 2.0 | | BRW2002-FS | UVFS | 20.0 | 2.0 | | BRW2502-FS | UVFS | 25.0 | 2.0 |
|
