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Glan Thompson polarizer is made of two calcite prisms or a-BBO prisms cemented together. Two types of Glan Thompsons are available. One is the standard form and the other is the long form. Their length to aperture ratios are 2.5 : 1 and 3.0 : 1 respectively. Glan Thompsons tend to have higher extinction ratio than air spaced polarizers. In the ultra violet spectrum, their transmission is limited by absorption in birefriengent materials as well as the cement layer. a-BBO polarizers and Calcite polarizers can be used from about 220 to 900nm and 350 to 2300 nm respectively.
| General Specifications |
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Schematic diagram |
| Optical Material: |
Calcite or YVO 4 |
| Wavelength Range: |
Calcite: 350-2300 nm, YVO 4 : 500-4000 nm |
| Extinction Ratio: |
Calcite:<5x10-5
YVO 4 :<5x10-6 |
| Transmission: |
>95%(typical) |
| Surface Quality: |
20-10 |
| Beam Deviation : |
< 3 arc minutes |
| Wavefront Distortion: |
λ /4@633nm |
| Damage Threshold: |
>500 MW/cm2 |
| Coating: |
uncoated |
| Mount: |
Black Anodized Aluminium |
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| Calcite High Transmission Glan Laser Polarizer800-1100nm |
Part No. |
Wavelength
Rang(nm) |
Extinction
Ratio |
Angular
Field(°) |
C.A.
fa (mm) |
O.D.
fd (mm) |
L±0.1
(mm) |
beam offset |
Unit
price
|
UHG-3001 |
350-2300 |
<5x10 -5 |
~5°(typical) |
6.0 |
25.4 |
25.0 |
5.5mm |
$256 |
UHG-3002 |
350-2300 |
<5x10 -5 |
~5°(typical) |
8.0 |
25.4 |
32.0 |
7.8mm |
$288 |
UHG-3003 |
350-2300 |
<5x10 -5 |
~5°(typical) |
10.0 |
30.0 |
38.0 |
9.3mm |
$346 |
UHG-3004 |
350-2300 |
<5x10 -5 |
~5°(typical) |
15.0 |
38.0 |
54.0 |
14.0mm |
$458 |
| YVO4 High Transmission Glan Laser Polarizer |
Part No. |
Wavelength
Rang(nm) |
Extinction
Ratio |
Angular
Field(°) |
C.A.
fa (mm) |
O.D.
fd (mm) |
L±0.1
(mm) |
beam
offset |
Unit
price
|
UHG-3101 |
500-4000 |
<5x10-6 |
~5°(typical) |
6.0 |
25.4 |
28.0 |
5.5mm |
$256 |
UHG-3102 |
500-4000 |
<5x10-6 |
~5°(typical) |
8.0 |
30.0 |
38.0 |
13.3mm |
$388 |
UHG-3104 |
500-4000 |
<5x10-6 |
~5°(typical) |
10.0 |
38.0 |
45.0 |
16.0mm |
$466 |
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Notes |
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»|Custom size is available upon requested and please contact us for OEM pricing. |
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