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- Constant Retardation over broad spectral ranges
- ¼ and ½ wave retardation.
- Four standard ranges
465 - 610 nm,
610 - 850 nm - NEW,
700 - 1000 nm,
1200 – 1650 nm
- Clear Aperture of 12.7mm*
- Air spaced construction
- Mounted
- AR Broadband Coated
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Product Description
An Achromatic Waveplate, AWP, is similar to a
Zero-Order Waveplate, which is made from two
pieces of Crystal Quartz except that the AWP is
composed of one piece of Crystal Quartz and one
piece of Magnesium Fluoride, MgF2. Both of
these materials are birefringent, however, by
proper matching of the birefringent changes in
one material with those of the second, retardation
changes are minimized as the wavelength changes.
This phenomenon produces a Waveplate whose
change in retardation is extremely small for large
variations in wavelength.
For tunable sources or lasers with large spectral
widths, you will want an AWP - one whose performance
is nearly independent of wavelength.
Our AWPs are designed to effectively eliminate
the wavelength dependence over a wide spectral
range, typically several hundred nanometers.
The AWPs are available for three wavelength
ranges: VIS (465-610nm), NIR (700-1000nm), 610 - 850 nm
and IR (1200-1650nm). These AWPs
operate beyond these ranges however; although the retardation
change exceeds the specification. The
standard versions are air-spaced. Custom assemblies,
including cemented versions, are available to meet
your specific requirements. Send us your drawing
for a quote on a custom AWP. |
Specifications |
Pricing and ordering info
AO12A-¼-X, or, AO12A-½-X |
$695.00 |
X = 1 for 465-610nm,
X = 4 for 610-850nm,
X = 2 for 700-1000nm,
X = 3 for 1200-1650nm |
Contact factory for quantity pricing |
* For all AWP's except AO12A-1/4 or 1/2-4
Custom AWPs available. |
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| Large Clear Aperature Cemented Waveplates |
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- Constant Retardation
- 23mm Clear Aperture
- Visible, Near IR and IR
- Unmounted or Mounted
- AR Broadband Coated
- Cemented Construction
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Product Description
This is the second series of Achromatic
Waveplates, AWPs, from Tower Optical
Corp. This series is built upon 25.4mm
substrates of Crystal Quartz and
Magnesium Fluoride. These substrates are cemented
together. This technique helps to control costs by reducing
the number of surfaces requiring AR coating while
increasing the physical size, thus accommodating larger
beam diameters. As with the original series of AWPs
these AWPs are available in the following ranges:
VIS 465 to 610nm, 610 to 850nm, NIR 700
to 1000nm, IR 1200 to 1650nm
Each is broadband AR coated for its respective range.The
performance is shown graphically on the curves below.
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Specifications |
Pricing and ordering info
AO23B-R-W, 25.4mm AWP mounted in 30mm ring
AO25.4B-R-W, 25.4mm AWP without mounting ring
R=½ or ¼ retardation |
W=Wavelength:
1 = 465-610nm,
4 = 610-850nm
2 = 700-1000nm,
3 = 1200-1650nm |
| AO23B-R-W |
$795.00 |
AO25.4B-R-W |
$770.00 |
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Tower Optical is a precision optics manufacturer
offering short lead times,excellent products, and
competitive prices.
Tower Optical Corporation
3600 S. Congress Avenue, Unit J
Boynton Beach, FL 33426 Email: sales@toweroptical.com
Phone: 1-561-740-2525
Toll Free: 1-800-526-7560
Fax: 1-561-740-2518
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©2010 contact Tower Optical Corporation for
Quality precision optics including Waveplates, Achromatic Waveplates, Retarders, Lenses, Prisms, Filters, Beam Splitters and Polarizers.
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