Achromatic Waveplates
Feature and advantage:
- Stable Phase Retardation Across a Broad Wavelength Range
- Multi-Material Composite Structure
- Fixed Phase Retardation Types
- Moderate Angular Sensitivity
- Better Temperature Stability Than Multi-Order Waveplates
PRODUCT
Detail
Achromatic waveplates use two birefringent crystalline materials Quartz and MgF2 to provide a constant phase shift independent of wavelength. The difference in dispersion between materials allows the arrangement of a slow phase shift over a broad wavelength range. Achromatic (Broadband) waveplates can be used to replace a number of single-wavelength quartz waveplates, making your system more convenient and compact.
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Common Specifications
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Material
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Quartz and MgF2
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Diameter Tolerance (mm)
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+0.0/-0.2 (General)
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Wavefront distortion
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λ/4
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Retardation tolerance
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λ/100
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Surface Quality
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20/10
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Parallelism
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3 sec.
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Coating
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AR Coating, Ravg<0.5%
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Standard Wavelength Range： 450~680nm, 700~1000nm，950~1300nm, 1200~1650nm
Achromatic Waveplate Retardation Curves：
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Standard Sizes for choose.
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Quarter
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Half
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Mount diameter
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CA
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Mount thickness
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P/N
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P/N
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(mm)
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(mm)
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(mm)
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AWP 210Q
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AWP 210H
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25.4
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10
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8
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AWP 212Q
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AWP 212H
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25.4
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12.7
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8
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AWP 215Q
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AWP 215H
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25.4
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15
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8
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AWP 220Q
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AWP 220H
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30
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20
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8
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AWP 225Q
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AWP 225H
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30
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23.5
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8
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