Wollaston Polarizer
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 plot blow. Any separation angle can be designed upon requirement. The separation angle of standard products vs wavelength is shown in the plot below.
Specifications:
| 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: | l/4@632.8nm |
| Damage Threshold: | >500 MW/cm2 |
| Coating: | Single MgF2 |
| Mount: | Black Anodized Aluminium |
1. a-BBO Wollaston Polarizer
| Part No. | Extinction Ratio | Separation Angle(°) | C.A. fa(mm) | O.D. fd(mm) | L±0.1(mm) |
| WSP6006 | <5x10-6 | 15-27 16@800nm |
6.0 | 15.0 | 14 |
| WSP6008 | 8.0 | 25.4 | 16.0 | ||
| WSP6010 | 10.0 | 25.4 | 18.0 | ||
| WSP6015 | 15.0 | 30.0 | 23.0 |
2. Calcite Wollaston Polarizer
| Part No. | Extinction Ratio | Separation Angle(°) | C.A. fa(mm) | O.D. fd(mm) | L±0.1(mm) |
| WPS7006 | <5x10-5 | 16.7-22.5 19@980nm |
6.0 | 15.0 | 14.0 |
| WPS7008 | 8.0 | 25.4 | 16.0 | ||
| WPS7010 | 10.0 | 25.4 | 18.0 | ||
| WPS7015 | 15.0 | 30.0 | 23.0 |
3. Quartz Wollaston Polarizer
| Part No. | Extinction Ratio | Separation Angle(°) | C.A. fa(mm) | O.D. fd(mm) | L±0.1(mm) |
| WPS7006 | <5x10-6 | 2-3 2 @ 1064nm |
6.0 | 15.0 | 20.0 |
| WPS7008 | 8.0 | 25.4 | 24.0 | ||
| WPS7010 | 10.0 | 25.4 | 28.0 | ||
| WPS7015 | 15.0 | 30.0 | 38.0 |
4. YVO4 Wollaston Polarizer
| Part No. | Extinction Ratio | Separation Angle(°) | C.A. fa(mm) | O.D. fd(mm) | L±0.1(mm) |
| WPS7006 | <5x10-6 | 19.6-23.3 19@1550nm |
6.0 | 15.0 | 14.0 |
| WPS7008 | 8.0 | 25.4 | 16.0 | ||
| WPS7010 | 10.0 | 25.4 | 16.0 | ||
| WPS7015 | 15.0 | 30.0 | 20.0 |