Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down the optic axis in...
Rochon Polarizer
Rochon Polarizer with good price and high quality .Rochon Polarizer made of MgF2,α-BBO,Calcite ,YVO4 or Quartz optical material.
Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down 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.
Rochon polarizer Features:
Optical Cemented
High Polarization Purity
Suitable for Low or High Power Application
Rochon polarizer Specifications:
| Attribute | Specification |
| Material: | MgF2,α-BBO,Calcite ,YVO4 or Quartz |
| Wavelength Range: | MgF2:130-4000nm;α-BBO:190-3500nm; Calcite:350-2300nm;YVO4:400-5000nm; Quartz:200-2300nm |
| Extinction Ratio： | MgF2: ＜5×10-6; α-BBO:＜5×10-6; Calcite:＜5×10-5; YVO4 :＜5×10-6 Quartz: ＜5×10-5 |
| Surface Quality： | 20/10 Scratch/Dig |
| Beam Deviation: | ＜1 arc minutes |
| Flatness: | λ/4@633nm |
| Damage Threshold： | ＞500MW/cm2 |
| Coating： | Single Layer MgF2 |
| Holder： | Black Anodized Aluminum |
MgF2 Wollaston Polarizer
| Part. No. | Wavelength Range(nm) | Extinction Ratio | Angular Field(°) | C.A.(φa)±0.1(mm) | O.D.(φd)±0.1(mm) | L±0.1 (mm) |
| PWS5006 | 130-4000nm | ＜5×10-6 | 2.7°@1064nm | 6.0 | 15.0 | 19.5 |
| PWS5008 | 8.0 | 25.4 | 23.5 | |||
| PWS5010 | 10.0 | 25.4 | 27.5 | |||
| PWS5015 | 15.0 | 30.0 | 37.5 | |||
| PWS5020 | 20.0 | 38.0 | 47.5 |
α-BBO Wollaston Polarizer
| Part. No. | Wavelength Range(nm) | Extinction Ratio | Angular Field(°) | C.A.(φa)±0.1(mm) | O.D.(φd)±0.1(mm) | L±0.1 (mm) |
| PWS6006 | 190-3500nm | ＜5×10-6 | 15-27° 16°@900nm | 6.0 | 15.0 | 14.0 |
| PWS6008 | 8.0 | 25.4 | 16.0 | |||
| PWS6010 | 10.0 | 25.4 | 18.0 | |||
| PWS6015 | 15.0 | 30.0 | 23.0 | |||
| PWS6020 | 20.0 | 38.0 | 28.0 |
Calcite Wollaston Polarizer
| Part. No. | Wavelength Range(nm) | Extinction Ratio | Angular Field(°) | C.A.(φa)±0.1(mm) | O.D.(φd)±0.1(mm) | L±0.1 (mm) |
| PWS7006 | 350-2300nm (Coating@990m) | ＜5×10-6 | 16.7-22.5° 19°@990nm | 6.0 | 15.0 | 14.0 |
| PWS7008 | 8.0 | 25.4 | 16.0 | |||
| PWS7010 | 10.0 | 25.4 | 18.0 | |||
| PWS7015 | 15.0 | 30.0 | 23.0 | |||
| PWS7020 | 20.0 | 38.0 | 28.0 |
YVO4 Wollaston Polarizer
| Part. No. | Wavelength Range(nm) | Extinction Ratio | Angular Field(°) | C.A.(φa)±0.1(mm) | O.D.(φd)±0.1(mm) | L±0.1 (mm) |
| PWS8006 | 400-4000nm (Coating@1550m) | ＜5×10-6 | 19.6-23.3° 20°@1550nm | 6.0 | 15.0 | 14.0 |
| PWS8008 | 8.0 | 25.4 | 16.0 | |||
| PWS8010 | 10.0 | 25.4 | 18.0 | |||
| PWS8015 | 15.0 | 30.0 | 20.0 | |||
| PWS8020 | 20.0 | 38.0 | 25.0 |
Quartz Wollaston Polarizer
| Part. No. | Wavelength Range(nm) | Extinction Ratio | Angular Field(°) | C.A.(φa)±0.1(mm) | O.D.(φd)±0.1(mm) | L±0.1 (mm) |
| PWS9006 | 200-2300nm (Coating@1064nm) | ＜5×10-5 | 2-3° 2°@1064nm | 6.0 | 15.0 | 20.0 |
| PWS9008 | 8.0 | 25.4 | 24.0 | |||
| PWS9010 | 10.0 | 25.4 | 28.8 | |||
| PWS9015 | 15.0 | 30.0 | 38.0 | |||
| PWS9020 | 20.0 | 38.0 | 48.0 |
Note: Order based on client requirement, including non-standard product and holder.
Rochon polarizer is one of the earliest designs, which is made of two birefringent material prisms cemented together. Both ordinary and extraordinary beams propagate collinearly down the optic axis in the first prism under the ordinary refractive index