Achromatic Waveplate
United photonics technologies
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
MATERIAL | Crystal Quartz&MgF2 Crystal |
DIMENSION TOLERANCE | +0/ -0.2mm |
WAVEFRONT DISTORTION | λ/4 at 632.8nm |
RETARDATION TOLERANCE | <λ/100 |
WAVELENGTH RANGE | 240 ~ 2100nm |
PARALLELISM | 3 arc seconds |
SURFACE QUALITY | 40-20 scratch and dig |
CLEAR APERTURE | 90% |
AR/AR COATING | Rave<0.8% at 450~ 680nm, Rave<0.8% at 700~ 1000nm, Rave<0.5% at 950~ 1300nm, Rave<0.5% at 1200~ 1650nm |
STANDARD WAVE | quarter-wave (λ /4), half-wave (λ/2) |
Specifications:
λ/4 Waveplates P/N # | λ/2 Waveplates P/N # | Mounter Dia(mm) | Clear Aperture (mm) | Mounter Thickness(mm) |
AWP410 | AWP210 | 25.4 | 10 | 8 |
AWP412 | AWP212 | 25.4 | 12.7 | 8 |
AWP415 | AWP215 | 25.4 | 15 | 8 |
AWP420 | AWP220 | 30 | 20 | 8 |
AWP425 | AWP225 | 30 | 23.5 | 8 |
Achromatic Waveplate Curve
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.
