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Achromatic Waveplate
Achromatic waveplate (AWP) is similar to zero order waveplate except that the two plates are made from different birefringent crystals (such as crystal quartz and magnesium fluoride plates.). Since the dispersion of the birefringence of two materials is different, it is possible to specify the retardation values at a broad wavelength range. So, the retardation will be less sensitive to wavelength change. In other words, it can be used at a broadband wavelength range.
Achromatic waveplates play one of the central roles in constructing universal birefringent filters (UBF).
For tunable sources or lasers with large spectral widths, you will want an AWP - one whose performance is nearly independent of wavelength.
Our AWPs are designed to effectively eliminate the wavelength dependence over a wide spectral range, typically several hundred nanometers. The standard versions are air-spaced. Custom assemblies, including cemented versions, are available to meet your specific requirements. Send us your drawing for a quote on a custom AWP.
Specifications:
Material: Quartz
Wavelength bandwidth: 420-640nm
Type: Cemented
Dimension Tolerance: +0.0, -0.1
Wavefront distortion: λ/8@633nm
Retardation Tolerance: λ/30
Parallelism: <1 arc second
Surface Quality: 20-10 scratch/dig
Clear Aperture: Central 90%
AR coating: Ravg<0.5% 420-640nm
| Part No. | Diameter (mm) |
|---|---|
| WPB210H | 10*10 |
| WPB210Q | 10*10 |
| WPB212H | 12.7*12.7 |
| WPB212Q | 12.7*12.7 |
| WPB215Q | 15*15 |
| WPB215H | 15*15 |
| WPB220H | 20*20 |
| WPB220Q | 20*20 |
| WPB225H | 25.4*25.4 |
| WPB225Q | 25.4*25.4 |
Q:Quarter Waveplates P/N
H:Half Waveplates P/N
Call for OEM quantity pricing.
A wide variety of custom zero waveplates are available, please contact us with your custom requirement.
Other Specification products are upon requirement.