Witoptics Photonics Inc.

Achromatic Waveplate

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.

 

Attribute
Specification
Material
Crystal Quartz&MgF2
Typical Diameter (Φmm)
10.0, 12.7, 15.0, 20.0
Diameter Tolerance (mm)
+0.0/-0.2
Wavefront distortion
λ/4@633nm
Retardation
λ/2 and λ/4
Retardation tolerance
<λ/100 over wavelength range
Parallelism
<5 arc second.(General) , <3 arc second. (High Precision)
Surface Quality
40/20
Clear Aperture
Central 90%
Coating
<0.5% @wavelength range

Wavelength Ranges:450~680nm,700~1000nm,950~1300nm,1200~1650nm

Telephone: +86-591-87528609-818 Fax:+86-591-87528573 Address:1#Bldg No.758 Qi’an Road, Fuwan Industrial Park,Fuzhou,Fujian ,P.R.C