click me!

Zero Order Optically Contacted Waveplates

  • Optical contact structure
  • Wide wavelength and temperature range
  • High damage threshold
  • Made of Quartz crystals
Inquire Us  


Material Quartz Wavelength Range 200~2300mm
Dimension Tolerance ±0.1mm Surface Quality 20/10 S/D
Parallelism <1 arc sec Retardation Tolerance < λ/500
Clear Aperture >90% Damage Threshold >500 MW/cm2
Coating AR coating Mount Black Anodized Aluminium

Modules or Types:

Standard Wavelength:

355nm, 532nm, 632.8nm, 780nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1480nm, 1550nm

Zero Order Waveplates-Optically Contacted
This type of zero order waveplate is constructed of two low order waveplate with their axes crossed. Thus,the effect of the first plate is canceled by the second,except for the residual difference between them.

  • Optically Contacted
  • AR Coated, R<0.2%
  • High Damage Threshold
  • Better Temperature Band width
  • Wide Wavelength Bandwidth


Zero Order Waveplates-Optically Contacted
Quarter Waveplates P/N # Half Waveplates P/N # Diameter (mm )
WPO410 WPO210 10
WPO412 WPO212 12.7
WPO415 WPO215 15
WPO420 WPO220 20
WPO425 WPO225 25
WPO430 WPO230 30

The zero order waveplates or retarders are designed to give a retardance of zero full waves, plus the desired fraction. Zero order waveplate shows better performance than multiple order waveplates. It has broad bandwidth and a lower sensitivity to temperature and wavelength changes. It should be considered for more critical applications.

Hangzhou Shalom EO offers the custom zero order waveplates or retarders upon customer's request, and the stocked modules are also available in fast delivery and low cost.