Glan Laser Polarizer

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.

Feature:

  • Air-spaced

  • Close to Brewster's Angle Cutting

  • High Polarization Purity

  • Short Length

  • Wide Wavelength Range

  • Suitable for medium power application

Technical Parameters:

Material
a-BBO, Calcite or YVO 4
Wavelength Range
BBO:200~3500 nm, Calcite:350~2300 nm,  YVO4:500~4000 nm
Extinction Ratio
Calcite:<5x10-5 ; a-BBO:<5x10-6 ; YVO 4 :<5x10-6
Surface Quality
20 / 10

Parallelism
Parallelism
Beam Deviation
< 3 arc minutes
Wavefront Distortion
λ /4@633nm
Damage Threshold
>500 MW/cm2
Coating
Standard : P Coating, or upon customers' request
Mount Anodized Aluminium