Achromatic Waveplate
Unlike standard waveplate, Achromatic Waveplate( AWP) provide a constant phase shift independent of the wavelength of light that is used. This wavelength independence is achieved by using two different crystalline materials to yield quarter- or half-wave retardation over a broad spectral range. The Retardation tolerance of our AWP is better than λ/100 over the entire wavelength range. The flat response of an AWP is ideal for use with tunable lasers, multiple laser-line systems and other broad spectrum sources.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Crystal Quartz&MgF2 |
| Typical Diameter (Φmm) | 10.0, 12.7, 15.0, 20.0 |
| Diameter Tolerance | +0.0/-0.2 |
| Wavefront distortion [633nm] | λ/4@633nm |
| Retardation | λ/2 and λ/4 |
| Retardation tolerance [over wavelength range] | <λ/100 over wavelength range |
| Parallelism [General] | <5 arc second. |
| Parallelism [High Precision] | <3 arc second. |
| Surface Quality | 40/20 |
| Clear Aperture [Central] | Central 90% |
| Coating [@wavelength range] | <0.5% @wavelength range |
| Wavelength Ranges | 450～680nm,700～1000nm,950～1300nm,1200～1650nm |
Datasheet
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Supplier Information
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