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Glan Laser prism polarizer is made of two same birefringent
material prisms that are assembled with an air space. This polarizer is a
modification of Glan Taylor polarizer and is designed to have less
reflection loss at the prism junction. Glan Laser Polarzier has two escape
windows that allow the rejected beam to escape out of the polarizer.
This makes it more desirable for high energy lasers. The surface quality
of these faces is relatively poor as compared to that of entrance and exit
faces. No scratch dig surface quality specifications are assigned to these
faces. The polarized field F1 and F2 of these is shown in the plot below.
Angular Field versus Wavelength
Features
- Air-spaced
- Close to Brewster's Angle Cutting.
- High Polarization Purity.
- Short Length.
- Suitable for low to medium power application
where the rejected beam is not required.
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Main Specifications
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| Material: |
a-BBO,
Calcite or YVO4 |
| Wavelength Range: |
a-BBO:
200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-4000 nm |
| Extinction Ratio: |
Calcite:<5x10-5;
a-BBO:<5x10-6;
YVO4:<5x10-6 |
| Parallelism: |
<1 arc Min |
| Surface Quality: |
20-10 |
| Beam Deviation: |
< 3 arc minutes |
| Wavefornt Distortion: |
l/4@633nm |
| Damage Threshold: |
>500 MW/cm2 |
| Coating: |
Single MgF2 |
| Mount: |
Black Anodized
Aluminum |
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Standard Products
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1.
a-BBO Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A.
fa (mm)
|
O.D.
fd (mm)
|
L±0.1
(mm)
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GLP-6206
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200-300
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<5x10-6
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>6.0
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6.0
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15.0
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29.0
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GLP-6208
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8.0
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25.4
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31.0
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GLP-6210
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10.0
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25.4
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31.0
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GLP-6215
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15.0
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30.0
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38.6
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GLP-6220
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20.0
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38.0
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48.9
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GLP-6306
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300-700
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<5x10-6
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>6.0
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6.0
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15.0
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25
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GLP-6308
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8.0
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25.4
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25
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GLP-6310
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10.0
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25.4
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26.0
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GLP6315
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15.0
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30.0
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33.4
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GLP-6320
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20.0
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38.0
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43.6
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GLP-6706
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700-3000
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<5x10-6
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>6.0
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6.0
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15.0
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23.0
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GLP-6708
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8.0
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25.4
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24.7
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GLP-6710
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10.0
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25.4
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25.9
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GLP-6715
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15.0
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30.0
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33.0
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GLP-6720
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20.0
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38.0
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43.6
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2. Calcite Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A.
fa (mm)
|
O.D.
fd (mm)
|
L±0.1
(mm)
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GLP-7006
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350-2300
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<5x10-6
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>7.7
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6.0
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15.0
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21.0
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GLP-7008
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8.0
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25.4
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24.5
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GLP-7010
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10.0
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25.4
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26.2
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GLP-7015
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15.0
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30.0
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33.3
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GLP-7020
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20.0
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38.0
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42.3
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3. YVO4 Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A.
fa (mm)
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O.D.
fd (mm)
|
L±0.1
(mm)
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GLP-8006
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500-4000
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<5x10-6
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>6.5
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6.0
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15.0
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18.0
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GLP-8008
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8.0
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25.4
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20.0
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GLP-8010
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10.0
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25.4
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23.0
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GLP-8015
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15.0
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30.0
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29.0
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GLP-8020
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20.0
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38.0
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38.0
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