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PPC uses laser-grade crystal quartz to produce multiple-order,
true zero-order and compound zero-order waveplates with retardations
of quarter-wave, half-wave or anything in-between.
Multiple-order retarders are ideal for narrow- or single-wavelength
applications at a specific operating temperature. For increased
bandwidth and thermal stability, zero-order waveplates
are recommended.
For compound zero-order waveplates and multi-element waveplate
assemblies, we use durable IBS coatings and our proprietary
epoxy-free bonding technology—Chemically Activated Direct
Bonding™ (CADB). This unique combination of processes results in
precise, high-energy components that exhibit environmental stability
and improved transmitted wavefront characteristics.
Waveplates are available as standalone
components, or as part of
a more complex optical assembly.
PPC manufactures custom
multi-element polarization assemblies
with and without
epoxy in sizes from 1 mm
to 1" for R&D, biomedical
and aerospace
applications.
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The liquid crystal variable phase retarder is a transmissive element with an electrically tunable optical phase retardance. The phase retardance can be tuned from 0 to sevral micormeters with a simple applied bias (0-5V). The device can be used from 400nm to 1800nm. Intensity losses are not higher than 15%. Optionnaly the phase retarder can be provided with a special dedicated USB electrical driver.
Alternativly the phase retarder can also be used as optical valve (for a narrow wavelength range) or as polarization state controller.
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An Achromatic Waveplate, AWP, is made one piece of Crystal Quartz and one piece of Magnesium Fluoride, MgF2. These materials are birefringent and by matching of the birefringent changes in one material with those of the second, retardation changes are minimized as the wavelength changes. This produces a waveplate whose change in retardation is small for large variations in wavelength.
The AWP’s are available for three wavelength ranges: VIS (465-610nm), NIR (700-1000nm) and IR (1200-1650nm).
Specifications
Substrate Material: Crystal Quartz & MgF2
Retardance: l/4 and l/2
Retardation Tolerance: l/100 over wavelength range
Clear Aperture: 11.5mm
Temp Coefficient of Retardation:
Wavelength ranges(nm): 465-610, 700-1000, 1200-1650
Transmitted Wavefront distortion: l/4@633nm
Surface Quality: 20/10 scratch dig
Parallelism: <1 arc min
AOI range for < 1% change in Retardance: +/-3°
Optical Axis: Marked on the mounting ring
Diameter Mounted: 25.4 mm
Thickness: 9mm
Coating: Ravg<1% at 465-610nm per surface
Ravg<0.6% at 700-1000nm per surface
Ravg<0.5% at 1200-1650nm per surface
Style: Airspaced
AO12A-¼-X, or, AO12A-½-X $695.00
X = 1 for 465-610nm,
X = 2 for 700-1000nm,
X = 3 for 1200-1650nm
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