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Glan Laser prism polarizer is made of two same birefringent material prisms that are assembled with an air space. The polarizer is a modification of the Glan Taylor type and is designed to have less reflection loss at the prism junction. The polarizer with two escape windows allow the rejected beam to escape out of the polarizer, which 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.
Specifications:
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Material:
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a -BBO, Calcite or YVO4
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Wavelength Range:
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a -BBO: 200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-5000 nm
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Extinction Ratio:
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Calcite:<5x10 -5 ; a -BBO:<5x10 -6 ; YVO4:<5x10 -6
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Parallelism:
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<1 arc Min
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Surface Quality:
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20-10
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Beam Deviation:
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< 3 arc minutes
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Wavefront Distortion:
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l/4@633nm
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Damage Threshold:
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>500 MW/cm 2
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Coating:
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Single layer MgF2
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Mount:
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Black Anodized Aluminium
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Standard Products
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)
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O.D. fd(mm)
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L ±0.1(mm)
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GLP5206
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200-270
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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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GLP5208
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8.0
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25.4
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31.0
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|||
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GLP5210
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10.0
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25.4
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31.0
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|||
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GLP5215
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15.0
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30.0
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38.6
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|||
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GLP5220
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20.0
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38.0
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48.9
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|||
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GLP5306
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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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25.0
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GLP5308
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8.0
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25.4
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25.0
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|||
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GLP5310
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10.0
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25.4
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26.0
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|||
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GLP5315
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15.0
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30.0
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33.4
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|||
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GLP5320
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20.0
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38.0
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43.6
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|||
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GLP5706
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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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GLP5708
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8.0
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25.4
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24.7
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|||
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GLP5710
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10.0
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25.4
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25.9
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|||
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GLP5715
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15.0
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30.0
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33.0
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|||
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GLP5720
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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
