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INTERNATIONAL EXHIBITION
Photonics Technology into
the 21st Century
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14-17
May, 2002
Kyiv, Ukraine |
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| PRODUCTS |
Super-Achromatic
Zero-Order Waveplates
Key Features
• Wide spectral range of achromatization
• Excellent polarization properties
• Wide angular acceptance
• Small beam deviation
• Large set of ranges of achromatization
• Operable over a broad temperature range
• Large set of clear apertures
• Compact design
AstroPribor Super-Achromatic Zero-Order Waveplates
(APSAWs) are multicomponent optical systems consisting of
birefringent elements. Separate components of APSAWs are
manufactured of polymethyl-methacrylate (PMMA). PMMA anisotropy
is introduced by single-axis stretching. Phase shift of
each component does not exceed 180 in the zero order. Optical
axes of all plates are oriented relative to one another
in a specific way. Both faces of APSAWs are protected from
mechanical damage with glued covers made of isotropic optical
quality glass.
Specification
| Phase shift
(Retardation) |
90 , 127 ,
180 (l/4, l/2.83,
l/2) |
| Spectral range of achromatization |
360 - 700 nm
400 - 800 nm
430 - 900 nm
500 - 1150 nm
570 - 1300 mn
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| Phase shift tolerance |
±3° |
| Angular acceptance |
±10° |
| Laser power handling capability |
Low |
| Wavefront deformation |
0.5 wave per cm |
| Operation temperature range |
- 20° C to + 50° C |
| Beam deviation |
<5 arcsec |
| Diameter |
15 - 60 mm |
| Clear aperture |
14 - 59 mm |
| Thickness |
5 - 10 mm |
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