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Achromatic Waveplate
Unlike standard waveplates, Achromatic Waveplates, 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 AWPs 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.
Capability
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MATERIAL
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Crystal Quartz&MgF2 Crystal
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DIMENSION TOLERANCE
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+0/ -0.2mm
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WAVEFRONT DISTORTION
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λ/4@632.8nm
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RETARDATION TOLERANCE
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<λ/100
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WAVELENGTH RANGE
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240~2100nm
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PARALLELISM
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3 arc seconds
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SURFACE QUALITY
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40-20 scratch and dig
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CLEAR APERTURE
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90%
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AR/AR COATING
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Rave<0.8% @450~680nm,
Rave<0.8% @700~1000nm,
Rave<0.5% @950~1300nm,
Rave<0.5% @1200~1650nm
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STANDARD WAVE
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quarter-wave (λ /4), half-wave (λ/2)
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Specifications:
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λ/4
Waveplates P/N #
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λ/2
Waveplates P/N #
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Mounter Dia(mm)
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Clear Aperture (mm)
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Mounter Thickness(mm)
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AWP410
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AWP210
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25.4
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10
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8
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AWP412
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AWP212
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25.4
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12.7
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8
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AWP415
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AWP215
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25.4
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15
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8
|
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AWP420
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AWP220
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30
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20
|
8
|
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AWP425
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AWP225
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30
|
23.5
|
8
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Achromatic Waveplate Curves
Note：
• Custom designs for other sizes and coatings are also available upon request.
• UPT’s standard coatings are available.
• Other waveplates with different wavelength range are also available upon request, please contact UPT for more information.
