Polarizing Beamsplitter
Splits light by polarization into reflected and transmitted beams, for example reflecting S and transmitting P. A beamsplitter is an important interferometer component widely used in lasers and fiber communication. It divides one beam into a source-described liang beams, or multiple beams, with properties identical to the source or partly identical for polarization splitting. Total split intensity equals source intensity if losses are ignored. Structure: generally a prism, such as a cube or right-angle prism, with a polarization-sensitive multilayer dielectric coating between two prisms. Coating design uses polarization-dependent reflection and transmission, such as the Brewster-angle effect. Principle: S or P polarization determines reflection or transmission. S polarization, electric field perpendicular to the incidence plane, is highly reflected; P polarization, parallel to that plane, is highly transmitted.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensional Tolerance | ±0.25mm |
| Surface Finish | 40/20 |
| Wavefront Distortion [632.8nm] | λ/4 @ 632.8nm |
| Effective Clear Aperture [Central Region] | >80% Central Region |
| Transmitted Beam Separation | <5′ |
| Reflected Beam Separation | 90°±5′ |
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Key Features
Datasheet
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Supplier Information
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