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Wollaston Polarizers

 

 

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  

 

Material: a-BBO、Calcite、YVO 4、Quartz
Wavelength Range: a-BBO : 190～3500 、Calcite: 350～2300 nm,
YVO 4 : 500～4000 nm, Quartz: 200～2300 nm,
Extinction Ratio: a-BBO:<5x10-6 Calcite:<5x10-5、 YVO 4 :<5x10-6 、石英：<5x10-4
Surface Quality: 20 / 10
Parallelism: <1 arc Min
Beam Deviation: < 3 arc minutes
Damage Threshold: λ /4@633nm
Damage Threshold: >500 MW/cm2
Coating: Single MgF2
Mount: Black Anodized Aluminium

 

1. a-BBO Wollaston Polarizer

 

 

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
PWS1006 190～3500nm <5x10-6 16° @800nm 6.0 15.0 15.0
PWS1008 8.0 25.4 17.0
PWS1010 10.0 25.4 19.0
PWS1015       15.0 30.0 23.0


2. Calcite Wollaston Polarizer 
 

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
PWS2006 350～2300nm <5x10-5 19° @980nm 6.0 15.0 15.0
PWS2008 8.0 25.4 17.0
PWS2010 10.0 25.4 19.0
PWS2015 15.0 30.0 23.0
PWS2020 20.0 38.0 29.0


3. Yvo4 Wollaston Polarizer
 

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
PWS3006 400～4000nm <5x10-6 20° @1550nm 6.0 15.0 15.0
PWS3008 8.0 25.4 17.0
PWS3010 10.0 25.4 19.0
PWS3015 15.0 30.0 23.0
PWS3020 20.0 38.0 29.0


4. Quartz Wollaston Polarizer
 

Part No. Wavelength Range Extinction Ratio Separation Angle C.A.φa (mm) O.D.φd (mm) L (mm)
PWS4006 200～2300nm <5x10-4 2° @1064nm 6.0 15.0 20.0
PWS4008 8.0 25.4 24.0
PWS4010 10.0 25.4 28.0
PWS4015 15.0 30.0 38.0
PWS4020 20.0 38.0 48.0