PBS beamsplitter prism
A polarizing beamsplitter separates incident unpolarized light into two orthogonal linearly polarized beams. P-polarized light is fully transmitted, while S-polarized light is reflected at 45 degrees and exits at 90 degrees to the P beam. Made from a pair of cemented high-precision right-angle prisms, with a polarizing beamsplitter dielectric coating on the hypotenuse of one prism.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [Shared by the standard/high-precision columns; Original cell colspan2] | N-BK7.Fused Silica,N-SF11,or depend on request |
| Clear Aperture [Standard specification] | ≥85 % |
| Dimension Tolerance [Standard specification] | ±0.1 mm |
| Flatness [Standard specification; 632.8nm] | λ/4 |
| Surface Quality [Standard specification] | 40-20 S/D |
| Beam Deviation [Standard specification] | ±3 arcmin |
| Angle Tolerance [Standard specification] | ±1 arcmin |
| Clear Aperture [High-precision specification] | ≥95 % |
| Dimension Tolerance [High-precision specification] | ±0.02 mm |
| Flatness [High-precision specification; 632.8nm] | λ/10 |
| Surface Quality [High-precision specification] | 10-5 S/D |
| Beam Deviation [High-precision specification] | ±30 arcsec |
| Angle Tolerance [High-precision specification] | ±10 arcsec |
| Assembly [Shared by the standard/high-precision columns; Original cell colspan2] | Cemented with Epoxy or optical bonding |
| PBS Coating Tp [Shared by the standard/high-precision columns] | ＞98 |
| PBS Coating Rs [Shared by the standard/high-precision columns] | >99 % |
| Extinction Ratio [PBS Coating; Shared by the standard/high-precision columns] | ＞30 |
| NPBS Coating Tp=Ts=Rp=Rs [Shared by the standard/high-precision columns] | 50±3 % |
| AR [λc±40nm; Shared by the standard/high-precision columns] | ＜0.2 |
Datasheet
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