Dual Wavelength Waveplates

Material: High grade quartz crystals.
Single plate design to give different retardations for two specified wavelengths:
a) Multi-order thick plates for narrow bandwidth lasers,
b) True 0th-order Ultrathin design (< 100 μm) with a large bandwidth
and minimum material dispersion for ultrafast pulses.
All optical surfaces AR coated.
Optically robust with a high damage threshold.
Two common plate sizes:
Diameter 15mm, mounted in OD 1" holder and
Diameter 1" (25.4 mm), mounted in OD 30 mm holder
Custom sizes are available upon request.
Mount adaptors are available.
On this page are mainly multi-order thick waveplates. For the true 0th-order
ultrathin waveplates for ultrafast pulses, please visit here.

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Model	Name	retardation	attr_size	aperture	Price	Availability	Action
WPD03-H800-F400-SP	Dual wavelength waveplate, λ/2@800nm + λ@400nm for short pulses, Single ultrathin plate ~ 45 µm , Dia 15mm, OD 1"	λ/2@800nm, λ@400nm	Dia 15.0mm		USD$519.00
WPD05-H800-F400-SP	Dual wavelength waveplate, λ/2@800nm + λ@400nm for short pulses, Single ultrathin plate ~ 45 µm , Dia 25.4mm, OD 30mm mounted	λ/2@800nm, λ@400nm	Dia 25.4mm	Dia 25.4mm	USD$679.00
WPD03-F800-H400	Dual wavelength waveplate, λ@800nm + λ/2@400nm, Dia 15mm, OD 1" mounted	λ@800nm, λ/2@400nm	Dia 15.0mm	Dia 15.0mm	USD$349.00	Out Of Stock
WPD05-F800-H400-M50.8	Dual wavelength waveplate, λ@800nm + λ/2@400nm, Dia 25.4mm, OD 2"=50.8mm mounted	λ@800nm, λ/2@400nm	Dia 25.4mm	Dia 25.4mm	USD$429.00	Out Of Stock
WPD03-Q800-H400	Dual wavelength waveplate, λ/4@800nm + λ/2@400nm, Dia 15mm, OD 1" mounted	λ/4@800nm, λ/2@400nm	Dia 15.0mm	Dia 15.0mm	USD$349.00	Out Of Stock
WPD03-H800-H400	Dual wavelength waveplate, λ/2@800nm + λ/2@400nm, Dia 15mm, OD 1" mounted	λ/2@800nm, λ/2@400nm	Dia 15.0mm	Dia 15.0mm	Ask	2-3 Days
WPD03-H810-F405	Dual wavelength waveplate, λ/2@810nm + λ@405nm, Dia 15mm, OD 1" mounted	λ/2@810nm, λ@405nm	Dia 15.0mm	Dia 15.0mm	USD$349.00	Out Of Stock
WPD03-H810-H405	Dual wavelength waveplate, λ/2@810nm + λ/2@405nm, Dia 15mm, OD 1" mounted	λ/2@810nm, λ/2@405nm	Dia 15.0mm	Dia 15.0mm	USD$349.00	Out Of Stock
WPD03-H780-F390	Dual wavelength waveplate, λ/2@780nm + λ@390nm, Dia 15mm, OD 1" mounted	λ/2@780nm, λ@390nm	Dia 15.0mm	Dia 15.0mm	Ask	Out Of Stock
WPD03-H780-H390	Dual wavelength waveplate, λ/2@780nm + λ/2@390nm, Dia 15mm, OD 1" mounted	λ/2@780nm, λ/2@390nm	Dia 15.0mm	Dia 15.0mm	USD$349.00
WPD03-H852-H426	Dual wavelength waveplate, λ/2@852nm + λ/2@426nm, diameter 15mm, OD 1" mounted	λ/2@852nm, λ/2@426nm	Dia 15.0mm		USD$329.00	Out Of Stock
WPD03-H1030-F515	Dual wavelength waveplate, λ/2@1030nm + λ@515nm, Dia 15mm, OD 1" mounted	λ/2@1030nm, λ@515nm	Dia 15.0mm	Dia 15.0mm	USD$349.00	Out Of Stock
WPD02-H1064-F532-UM	Dual wavelength waveplate, λ/2@1064nm + λ@532nm, Dia 12.7mm, Unmounted	λ/2@1064nm, λ@532nm	Dia 12.7mm		Ask	Out Of Stock
WPD03-H1064-F532	Dual wavelength waveplate, λ/2@1064nm + λ@532nm, Dia 15mm, OD 1" mounted	λ/2@1064nm, λ@532nm	Dia 15.0mm	Dia 15.0mm	USD$349.00
WPD05-H1064-F532	Dual wavelength waveplate, λ/2@1064nm + λ@532nm, Dia 25.4mm, OD 30mm mounted	λ/2@1064nm, λ@532nm	Dia 25.4mm		Ask	Out Of Stock

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Dual Wavelength Waveplate Specifications:

Dimensions Tolerance: +/- 0.1 mm
Wavefront Distortion: < λ/8 @632.8 nm
Retardation Tolerance: < λ/50 for both wavelengths (for multi-order),
< λ/30 for both wavelengths (for ultrathin plate)
Surface Quality: 20-10 scratch and dig
Coating: AR coating with R < 0.5% at both wavelengths
Holder: OD 1" or 30 mm anodized aluminum holder
Clear Aperture: > Diameter - 2.0 mm (mounted)

Retardance curves for ultrathin (~ 45 um) DWP @ 800/400 nm:

The ultrathin dual waveplate is a precise 0th-order half waveplate @ 800 nm and an approximate full waveplate @ 400nm. With the fast axis set @ 45 deg, a linearly polarizated light @ 800 nm is rotated by 90 deg and remains linear while a linearly polarized light @ 400 nm becomes slightly elliptical with the amplitude along the original polarization reduced by ~ 5%. This small "loss of amplitude" is not problematic for most applications.