The brewster window is a reflective optical device positioned at the Brewster angle relative to the incident light wave. At this specific angle, the p-polarized component of the light wave passes through completely, while the s-polarized component is reflected. Essentially, it functions as a polarizer.
Polarization Characteristics: A Brewster window is a reflective optical device positioned at the Brewster angle relative to the incident light wave. At this angle, the p-polarized component of the light wave passes through completely, while the s-polarized component is reflected. Therefore, it essentially functions as a polarizer.
Optical Performance: The Brewster window can effectively transmit the p-polarized component of the incident light while reflecting the s-polarized component. This characteristic makes it an important element in optical systems, such as for polarization analysis or polarization control in optical instruments.
Application Fields: Due to its unique polarization properties, the Brewster window is widely used in fields such as optics, optoelectronics, and spectral analysis. For example, it is used in optical instruments for polarization analysis or control, and in optical communications as a polarization-maintaining element.
Specifications | Commercial spec. | High precision spec. |
Material | UV glass (Quartz, Fused silica） VIS glass (Schott, CDGM, HOYA, etc.) | |
Dimension | 5mm~100mm | |
Dimension tolerance | ±0.1mm | ±0.05mm |
Surface quality | 60/40 | 20/10 |
Surface flatness | 1/4λ | 1/10λ |
Clear aperture | >85% of dim | >90% of dim |
Angel tolerance | 3 arc min | 5 arc sec. |
Parallelism | <1 arc min | <30 arc sec. |
Bevel | <0.2mm x 45deg | <0.1mm x 45deg |
Coating | Up on clients’ request | |
Part Number | Material | Major Axis (mm) | Minor Axis (mm) | Thickness (mm) | Material |
BRW-26.53-15.0-2.0T | Fused Silica | 26.53 | 15.0 | 2.0 | Fused silica |
BRW-35.37-20.0-2.0T | Fused Silica | 35.37 | 20.0 | 2.0 | Fused silica |
BRW-44.21-25.0-2.0T | Fused Silica | 44.21 | 25.0 | 2.0 | Fused silica |
Optical Communication: In fiber optic communication, a Brewster window can enhance the polarization of light, reduce transmission losses, and thereby improve communication quality and speed.
Laser Technology: In laser cutting and laser printing equipment, a Brewster window can reduce reflection losses of the laser, increasing the efficiency and beam quality of the laser.
Spectral Analysis: In spectrometers, a Brewster window can be used to selectively reflect or transmit light of specific wavelengths, enabling precise measurement and analysis of spectral data.
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