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The Glan Thompson polarizer as a beamsplitter.

                   
Glan-Thompson Polarizer Beamsplitter is made of two calcite prisms cemented together. As shown in the figure 1, the two output lights separate at 45 degree angle. It is suitable for is suitable for low to medium power application. Calcite polarizers can be used from 350 to 2300 nm.  

 

 

 

Angular Field vs Wavelength

 

 Figure 1

 
    Calcite, 350-2300nm 		             


 

Specifications

Material: Calcite
Wavelength Range: 350-2300 nm
Extinction Ratio: < 5x10-5
Parallelism: <1 arc minutes
Surface Quality: 20-10
Beam Deviation: < 3 arc minutes
Wavefornt Distortion: λ /4 @ 633 nm
Damage Threshold:>200 MW/cm2
Coating:Single MgF2
Mount:Black Anodized Aluminium

 

 

Calcite Glan-Thompson Polarizer Beamsplitter (PGB )

 

Part No.  L/CA Extinction RatioAngular Field(°) C.A. φ a (mm) O.D. φ d (mm) L±0.1(mm)
50.230.00110

2.4

<5x10-5

>15

6.0

50.8

33

50.230.00111

8.0

50.8

33

50.230.00112

10.0

50.8

33

50.230.00113

12.7

50.8

33

50.230.00114

15.0

50.8

38