Newport MKS Brewster Window, Minor: 25.0 mm, Major: 44.21 mm, 2.0 mm thick BQW-2

The BQW-2 Brewster Window is made with UV grade fused silica with laser grade surface quality and parallelism to make it the ideal polarizer to use within a laser cavity. The BQW-2 has a 44.21 mm major axis, a 25.0 mm minor axis, and is 2.0 mm thick. When oriented at the 55.57° Brewster's angle, this window is designed to generate circular profile, allowing P-Polarized light to pass through the window with minimum losses while the S-Polarized light being reflected off the Brewster window. This window limits the transmitted wavefront distortion to 1/10 of wave.