The zero-order quarter wave plate of CRYLINK quartz air gap is composed of two quartz wave plates with a spacer in the middle. The fast axes of the two quartz wave plates are perpendicular to each other, and the phase difference between them is π/2. The wave plate is pre-installed in the black anodized aluminum ring for easy installation and use. Quarter wave plate is often used to convert linearly polarized light into circularly polarized light. Compared with the glued quartz crystal zero order wave plate, the air gap is formed between the two quartz wave plates in the air gap zero order wave plate. This structure is suitable for high power laser applications.


Basic Parameters

MaterialCrystalline Quartz
Product IDPB05005
Retardation tolerance±λ/300
Clear apertureØ10.0 mm or Ø20.0 mm
Thickness4.8 mm
Thickness Diameter Tolerance+0.0/-0.1 mm
Design wavelength405 nm,442 nm,532 nm,633 nm,780 nm,808 nm,
850 nm,980 nm,1030 nm,1064 nm,1550 nm
Thickness tolerance±0.1 mm
ReflectanceRabs<0.25%(@ Design Wavelength)
DiameterØ25.4 mm
Surface Parallelism<10 arcsec
Surface quality20/10


  • High power laser


  • High damage threshold
  • Wide temperature bandwidth
  • Large wavelength bandwidth
  • All surfaces are coated with antireflective film,and the bracket has been installed
  • RoHS compliant
Quartz Zero-Order Quarter-Wave plate Spectrogram
Quartz Zero-Order Quarter-Wave plate Spectrogram

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