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Wide separation, two beam polarizer. The Wollaston polarizer is made of two birefringent material prisms that are cemented together. The deviations of the ordinary and extraordinary beams are nearly symmetrical about the input beam axis, so that the Wollaston polarizing beam splitter has approximately twice the deviation of the Rochon. The separation angle exhibits chromatic dispersion, as shown in the blow. Any separation angle can be designed upon the requirement. The separation angle of standard products vs wavelength is shown in the plot below. Call for OEM quantity pricing and custom design polarizers. We aim to meet your customization requirements. Let us know what you need and we will supply:
custom design Wollaston polarizers
custom separation angles at certain wavelengths
custom size mounts and mounting threads
custom AR coatings Separation Angular of Standard Products vs Wavelength | | 
a -BBO, 190-3500nm | | 
Calcite:350-2300nm | | | 
Quartz, 200-3300nm | | 
YVO4, 400-4000nm |
Specifications |
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| Material | a-BBO, Calcite, YVO4, Quartz | | Wavelength Range | a-BBO:190-3500 nm,Calcite:350-2300 nm,YVO4:400-4000nm,Quartz:20-2300nm | | Extinction Ratio | Calcite, Quartz:<5x10-5 ; a-BBO, YVO4:<5x10-6 | | Parallelism | <1 arc Min | |  | | Surface Quality | 20-10 | | | Beam Deviation | < 3 arc minutes | | | Wavefornt Distortion | λ /4@633nm | | | Damage Threshold | Standard: Max. Power: (CW) 1 W/cm2, (Pulsed) not applicable Optional - optically contacted: Max. Power: (CW) 20 W/cm2, (Pulsed) 40 MW/cm2 | | | Coating | Single MgF2 | | | Mount | Black Anodized Aluminium | |
Standard Products 1. a-BBO Wollaston Polarizer Part No. | Extinction Ratio | Separation Angle(°) | C.A. φ a (mm) | O.D. φ d (mm) | L±0.1(mm) |
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| 50.230.00058 | <5x10-6 | 15-27
16@800nm | 6.0 | 15.0 | 14.0 | | 50.230.00059 | 8.0 | 25.4 | 16.0 | | 50.230.00060 | 10.0 | 25.4 | 18.0 | | 50.230.00061 | 15.0 | 30.0 | 23.0 | | 50.230.00062 | 20.0 | 38.0 | 28.0 |
2. Calcite Wollaston Polarizer | Part No. | Extinction Ratio | Separation Angle(°) | C.A. φ a (mm) | O.D. φ d (mm) | L±0.1(mm) |
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| 50.230.00063 | <5x10 -5 | 16.7-22.5
19@980nm | 6.0 | 15.0 | 14.0 | | 50.230.00064 | 8.0 | 25.4 | 16.0 | | 50.230.00065 | 10.0 | 25.4 | 18.0 | | 50.230.00066 | 15.0 | 30.0 | 23.0 | | 50.230.00067 | 20.0 | 38.0 | 28.0 |
3. Quartz Wollaston Polarizer | Part No. | Extinction Ratio | Separation Angle(°) | C.A. φ a (mm) | O.D. φ d (mm) | L±0.1(mm) |
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| 50.230.00068 | <5x10 -5 | 2-3
2@1064nm | 6.0 | 15.0 | 20.0 | | 50.230.00069 | 8.0 | 25.4 | 24.0 | | 50.230.00070 | 10.0 | 25.4 | 28.0 | | 50.230.00071 | 15.0 | 30.0 | 38.0 | | 50.230.00072 | 20.0 | 38.0 | 48.0 |
4. YVO4 Wollaston Polarizer | Part No. | Extinction Ratio | Separation Angle(°) | C.A. φ a (mm) | O.D. φ d (mm) | L±0.1(mm) |
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| 50.230.00073 | <5x10 -6 | 19.6-23.3
20@1550nm | 6.0 | 15.0 | 14.0 | | 50.230.00074 | 8.0 | 25.4 | 16.0 | | 50.230.00075 | 10.0 | 25.4 | 16.0 | | 50.230.00076 | 15.0 | 30.0 | 20.0 | | 50.230.00077 | 20.0 | 38.0 | 25.0 |
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Optics 
