罗氏偏振镜

罗氏偏振镜

罗氏偏振镜是最早的设计之一,它由两个双折射材料棱镜粘合在一起。普通光束和超常光束在普通折射率下沿第一棱镜的光轴共线传播。

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描述

罗氏偏振镜

罗氏偏振镜是最早的设计之一,它由两个双折射材料棱镜粘合在一起。普通光束和超常光束在普通折射率下沿第一棱镜的光轴共线传播。进入第二棱镜时,普通光束经历相同的折射率,并且继续不被阻挡。然而,超普通光束现在折射率较低,并且在界面处折射。双折射材料/出风口表面的折射角进一步增大。任何分离角都可以根据需要设计为特定波长。标准产品与波长的分离角度如下图所示。

罗氏偏振器的特点:

光学胶结

高偏振纯度

适用于低功率或高功率应用

罗氏偏振器规格:

AttributeSpecification
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)
PWS5006130-4000nm<5×10-62.7°@1064nm6.015.019.5
PWS50088.025.423.5
PWS501010.025.427.5
PWS501515.030.037.5
PWS502020.038.047.5

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)
PWS6006190-3500nm<5×10-615-27°
16°@900nm
6.015.014.0
PWS60088.025.416.0
PWS601010.025.418.0
PWS601515.030.023.0
PWS602020.038.028.0

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)
PWS7006350-2300nm
(Coating@990m)
<5×10-616.7-22.5°
19°@990nm
6.015.014.0
PWS70088.025.416.0
PWS701010.025.418.0
PWS701515.030.023.0
PWS702020.038.028.0

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)
PWS8006400-4000nm
(Coating@1550m)
<5×10-619.6-23.3°
20°@1550nm
6.015.014.0
PWS80088.025.416.0
PWS801010.025.418.0
PWS801515.030.020.0
PWS802020.038.025.0

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)
PWS9006200-2300nm
(Coating@1064nm)
<5×10-52-3°
2°@1064nm
6.015.020.0
PWS90088.025.424.0
PWS901010.025.428.8
PWS901515.030.038.0
PWS902020.038.048.0
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