Overview: The Glan Laser prism polarizer is made of two birefrigent crystal prisms which are
assembled with an air space. This polarizer is a modification of
the Glan Taylor type and is designed to have less reflection loss
at the prism junction. This polarizer is available with none, one
or two escape windows. The one without escape windows is made for
low energy lasers. The escape windows allow the rejected ordinary
beam to escape out of the polarizer which makes it more desirable
for high energy lasers. The polished faces of the side window are
in the fragile cleavage plane of the birefrigent crystals. 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 Glan Laser Prism polarizers are ideal for applications
requiring extremely high degree of polarization purity (100,000:1)
and high damage thresholds. General Specifications of Glan-Laser Prism Polarizer: | Material | a-BBO, Calcite, YVO4 | | Wavelength Range | a-BBO: 220-3000nm; Calcite: 350-2300nm; YVO4: 500-4000nm | | Extinction Ratio | <5x10-6 | | Surface Quality | 20/10 scratch and dig | | Wavefront Distortion | <λ/4@632.8nm | | Beam Deviation | <3 arc minutes | | Damage Threshold | >5J/cm2, 20ns, 20Hz, @1064nm | | Coating | Single Layer MgF2, Tp>80%@300nm, 532nm, 1064nm Typical | | Mount | Black Anodized Aluminium |
Standard Products of Glay-Laser Prism Polarizer: | Part Number | Material | Wavelength (nm) | Angular Field (°) | CA (mm) | Mount (mm) | AR Coating | | GLP-UB-6-10 | a-BBO | 350-700 | >6.0 | 10.0 | φ25.4X26.0 | MgF2 | | GLP-UB-6-12 | a-BBO | 350-700 | >6.0 | 12.7 | φ25.4X27.0 | MgF2 | | GLP-UB-6-15 | a-BBO | 350-700 | >6.0 | 15.0 | φ30.0X33.4 | MgF2 | | GLP-VB-6-08 | a-BBO | 700-3000 | >6.0 | 8.0 | φ25.4X24.7 | MgF2 | | GLP-VB-6-10 | a-BBO | 700-3000 | >6.0 | 10.0 | φ25.4X25.9 | MgF2 | | GLP-VB-6-12 | a-BBO | 700-3000 | >6.0 | 12.7 | φ25.4X27.0 | MgF2 | | GLP-VB-6-15 | a-BBO | 700-3000 | >6.0 | 15.0 | φ30.0X33.0 | MgF2 | | GLP-Y-6.5-08 | YVO4 | 500-4000 | >6.5 | 8.0 | φ25.4X20.0 | MgF2 | | GLP-Y-6.5-10 | YVO4 | 500-4000 | >6.5 | 10.0 | φ25.4X23.0 | MgF2 | | GLP-Y-6.5-15 | YVO4 | 500-4000 | >6.5 | 15.0 | φ38.1X31.0 | MgF2 |
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