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Glan Laser Polarizers of Alpha-BBO D12.7mm 700-3500nm with Round Mount

Code: 20701-013



Material Alpha-BBO Wavelength Range 700~3500nm
Aperture Size ɸ12.7mm Extinction Ratio <5x10-6
Angular Field >6° Surface Quality 20 / 10 S/D
Parallelism <1 arc Min Beam Deviation < 3 arc minutes
Wavefront Distortion λ /4@633nm Damage Threshold >500 MW/cm2
Coating Single MgF2 Mount Black Anodized Aluminium
Mount Size ɸ25.4x27mm

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. 

Angular Field vs Wavelength (Alpha-BBO 700-3500nm)

4 weeks