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Achromatic waveplate

 

Achromatic waveplate is similar to zero order waveplate except that the two plates are made from different birefringent crystals. 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.

 

  • Epoxy Cemented or Air Spaced available 
  • Very Broad Bandwidth
  • Custom size available
  • RoHS Compliant
Specifications
 
Material
Birefringent crystals
Dimension Tolerance
+0.0/-0.2mm
Wavefront Distortion

λ/4 @632.8nm (for air spaced type)

Retardation Tolerance
λ/100
Parallelism
<10 arc second (for cemented type)
Surface Quality
40/20 scratch and dig
Clear Aperture
>90% central area
Standard Wave
quarter-wave (v/4), half-wave (λ/2)
Standard Wavelength
450-650nm 550-750nm 650-1100nm 900-2100nm
Coating
Uncoated for standard, AR coating available

λ/2 Part No.
λ/4 Part No.
Diameter(mm)
Unit Price
Type
AWP210
AWP410
10.0
$280
Cemented
AWP215
AWP415
15.0
$340
AWP225
AWP425
25.4
$550
AWP2210
AWP4410*
10.0
$305
Air Spaced
AWP2215
AWP4415*
15.0
$365
AWP2225
AWP4425*
25.4
$580

 

Note: Other sizes, wavelength are available upon request.


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