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Wollaston Polarizer & Beamsplitter
Wollaston polarizers, or Wollaston prisms are made of two birefringent crystal prisms which are cemented together. The deviations of the ordinary and extraordinary beams are nearly symmetrical about the input beam axis in Wollaston polarizer. Wollaston polarizing beam splitter has approximately twice deviation of Rochon polarizer. The separation angle of Wollaston polarizer is determinded by wollaston prisms' wedge and wollaston prisms' optical index. The separation angle of standard Wollaston polarizer vs wavelength is listed in the following table. Different separation angle of Wollaston polarizer can be designed upon request.
| Wavelength(nm) | MgF2 | α-BBO | Calcite | YVO4 | Quartz |
| 130 | 2.80 | ||||
| 150 | 3.24 | ||||
| 170 | 3.19 | ||||
| 190 | 3.11 | 27.18 | |||
| 200 | 3.07 | 25.00 | 2.93 | ||
| 266 | 2.89 | 19.39 | 2.47 | ||
| 355 | 2.78 | 17.45 | 22.39 | 2.23 | |
| 400 | 2.75 | 17.01 | 21.54 | 26.33 | 2.18 |
| 532 | 2.70 | 16.38 | 20.28 | 22.93 | 2.08 |
| 633 | 2.68 | 16.17 | 19.80 | 21.87 | 2.05 |
| 808 | 2.66 | 15.99 | 19.34 | 20.96 | 2.02 |
| 980 | 2.64 | 15.93 | 19.02 | 20.53 | 2.00 |
| 1064 | 2.64 | 15.91 | 18.88 | 20.40 | 2.00 |
| 1319 | 2.62 | 15.92 | 18.50 | 20.14 | 1.99 |
| 1550 | 2.60 | 15.96 | 18.14 | 20.00 | 1.99 |
| 2000 | 2.56 | 16.10 | 17.36 | 19.86 | 2.00 |
| 2500 | 2.50 | 16.33 | 16.30 | 19.77 | 2.00 |
| 3000 | 2.43 | 16.63 | 19.71 | ||
| 4000 | 2.25 | 17.44 | 19.62 | ||
| 5000 | 2.01 | 18.56 | 19.54 | ||
| 6000 | 1.70 |
Specifications of Wollaston Polarizers
Polarizer Type: Wollaston Polarizer
Material: α-BBO, Calcite, YVO4, Quartz, MgF2
Wavelength Range: α-BBO: 200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-4500 nm, Quartz: 200-2300 nm, MgF2: 130-6500 nm
Surface Quality: 20-10
Wavefront Distortion: < 1/4 @633nm
Coating: Single Layer MgF2
Extinction Ratio: > 55dB a-BBO YVO4 MgF2, > 45dB Quartz Calcite
Damage Threshold: > 500MW/cm2
Temperature Range: -50 deg. C to 80 deg. C
Mount: Black anodized aluminum
Standard Sizes: 6mm, 8mm, 10mm, 12.7mm, 15mm, 20mm
Wollaston Polarizers Order Information
OptoCity offer high quality Wollaston polarizers at very competitive price. Standard Wollaston polarizers are available in stock. Custom specified Wollaston polarizer is also available upon request. Please send us an email to request for quote.