Rochon Polarizer / wollaston polarizer

Rochon Polarizers 罗雄棱镜Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate coldown the optic axis in the first prism under the ordinary refractive index. Upon entering the second prism the ordinary beam experiences the same refractive index and continues undeviated. The extra-ordinary beam, however, now has a lower refractive index and is refracted at the interface. The angle of refraction is further increased at the birefringent material/air exit surface. Any separation angle can be designed for specific wavelength upon the requirement. The separation angle of standard products vs wavelength is shown in the plot below.Specifications:Material:a-BBO, Quartz,YVO4,MgF2Wavelength Range:a-BBO:190-3500nm, Quartz:200-2300 nm ;YVO4:400-4000nmExtinction Ratio:a-BBO:<5x10-6 ; Quartz:<5x10-5 ;YVO4:<5x10-6Parallelism:<1 arc MinSurface Quality:20/10Beam Deviation:< 3 arc minutesWavefornt Distortion:λ/[email protected]Damage Threshold:>500 MW/cm2Coating:Single MgF2Mount:Black Anodized AluminiumStandard Products1. a-BBO Rochon PolarizerPart No. Extinction Ratio Separation Angle(°)C.A. fa(mm) O.D. fd(mm) L ±0.1(mm) RHP5006 <5x10-68. 0°-14° 8°@ 800nm2.Quartz Rochon PolarizerPart No. Extinction Ratio Separation Angle(°) C.A. fa(mm)O.D. fd(mm) L ±0.1(mm)RHP8006 <4x10-6 1.0°-1.5° 1°@980nm3.YVO4 Rochon PolarizerPart No. Extinction Ratio Separation Angle(°)C.A. fa(mm) O.D. fd(mm) L ±0.1(mm)RHP9006 <5x10-6 9.8°-13.0° 10°@ 1550nmNote：Custom designs for other sizes and coatings are also available upon request

Wollaston Polarizers 沃拉斯通棱镜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.Separation Angular of Standard Products vs Wavelengtha -BBO, 190-3500nmCalcite:350-2300nmQuartz, 200-3300nmYVO4, 400-4000nmSpecifications:Material:a-BBO , Calcite , YVO4 , QuartzWavelength Range:a-BBO:190-3500 nm, Calcite:350-2300 nm, YVO4:400-5000 nm, Quartz:200-2300 nmExtinction Ratio:Calcite,Quartz:<5x10-5; a-BBO , YVO4:<5x10-6Parallelism:<1 arc MinSurface Quality:20/10Beam Deviation:< 3 arc minutesWavefornt Distortion:λ/[email protected]Damage Threshold:>500 MW/cm2Coating: Single MgF2Mount:Black Anodized AluminiumStandard Products1. a-BBO Wollaston PolarizerPart No.Extinction Ratio Separation Angle(°) C.A.fa(mm) O.D. fd(mm) L ±0.1(mm)WLP50** <5x10-6 15°-27° 16°@ 800nm2. Calcite Wollaston PolarizerPart No. Extinction RatioSeparation Angle(°) C.A. fa(mm) O.D. fd(mm) L ±0.1(mm)WLP60** <5x10-5 16.7° - 22.5° 19°@980nm3. Quartz Wollaston PolarizerPart No.Extinction Ratio Separation Angle(°) C.A.fa(mm) O.D. fd(mm) L ±0.1(mm)WLP80** <5x10-5 2°- 3° 2°@ 1064nm4. YVO4 Wollaston PolarizerPart No. Extinction Ratio Separation Angle(°)C.A. fa(mm) O.D. fd(mm) L ±0.1(mm)WLP90** <5x10-6 19.6°-23.3° 20°@ 1550nmNote：Custom designs for other sizes and coatings are also available upon request United tonics Technology