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Polarization Rotators

Achromatic waveplate is similar to Zero-order waveplate except that the two plates are made from different materials, such as crystal quartz and magnesium fluoride. Since the dispersion of the birefringence can be different for the two materials, it is possible to specify the retardation values at a wavelength range. Hence, the retardation of the resulting waveplate can be made to low sensitivity to wavelength change. Based on the contact methods of two plates, we classify the achromatic waveplate to two types: Airspaced and Cemented.

Main Specifications:
    Material:
    Crystal Quartz
    Parallelism:
    <10 arc seconds
    Flatness:
    <λ/4 @ 632.8 nm
    Surface Quality:
    20-10 scratch and dig
    Rotation Accuracy:
    < 5 minutes
    Wavelength Range:
    350-1300 nm
    AR Coating:
    R<0.2% at central wavelength
    Standard Diameter:
    10.0 12.7, 15.0, 20.0

Angle of Rotation can be designed upon request.

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Sales Office in Shanghai
Tel: 86-21-58325141      Fax: 86-21-58329412
E-mail: sales@polarbeam.com

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