Polarizing Beam Splitter Cubes (PBS Cube) are constructed by cemented two precision high tolerance right angle prisms; the hypotenuse of one prism is coated with polarization dielectric coating. It randomly polarized beams into two orthogonal, linearly, polarized components. S-polarized light is reflected at a 90 degree angle while P-polarized light is transmitted.
Specifications:
Material | BK7, UV Fused Silica |
Dimension Tolerance | ±0.2mm |
Surface Quality | 40/20 scratch and dig |
Clear Aperture | >90% |
Flatness | <λ/8@632.8nm |
Beam Deviation | <3 arc minutes |
Extinction Ratio | Tp/Ts>1000:1 |
Principal Transmittance | Tp>95%, Ts<0.1% |
Principal Reflectance | Rs>99.9% , Rp<5% |
Coating | Polarization beamsplitter coating on hypotenuse face
AR coating on all input and output faces |
Damage Threshold | >5J/cm2, 20ns, 20Hz, @1064nm |
