Waveplates (phase retardation plates)


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Product Catalog 2017

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Low Order Dual Wavelength Waveplates

Low Order Dual Wavelength Waveplates
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Material Crystalline Quartz
Clear Aperture > 18 mm
Diameter tolerance +0/-0.2 mm
Thickness tolerance ±0.2 mm
Surface quality 20/10 S/D
Transmitted wavefront distortion (TWD) <[email protected] nm
Retardation tolerance λ/300 @ 20 °C
Parallelism error <3 arcsec
Coatings AR(R<0.2 %) on each surface
Laser induced damage threshold >5 J/cm2 for 10 ns pulses @ 1064 nm
Mounting Mounted in Ø25.4x 6 mm black anodized metal mount
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Attention! You can customise this product to your needs.
Waveplates are made from materials which exhibit birefringence. The velocities of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. Difference in velocities gives rise to a phase difference when two beams recombine. At any specific wavelength the phase difference is governed by the thickness of the retarder - waveplate.

Dual wavelength low order waveplates are made from high quality crystalline quartz and are available at quarter-wave, half-wave and full-wave retardance. One of possible examples is a waveplate, which is designed to be used in dual wavelength setup at 800 nm and 400 nm. It operate as a λ/2 plate at 800 nm and λ plate at 400 nm. This means that 45° rotation of waveplate, induces 90° rotation of electrical vector at 800 nm and does not change state of polarization at 400 nm. Another possible configuration is λ/2 plate at 800 nm and λ/4 plate at 400 nm. In this case waveplate rotates electrical vector by 90° at 800 nm and provides a circular polarization at 400 nm. These are just two possible configurations out of many available. All waveplates are mounted in Ø25,4 mm black anodized aluminum ring and feature clear aperture of 18 mm.
varna Controls polarization for dual wavelength sources

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Clear aperture, mm Retardation and wavelength Delivery Product ID Price Action
> 18 λ/2 @ 1030 nm + λ/2 @ 515 nm Request 2-LODW-L2-1030-L2-515 Request REQ
> 18 λ @ 1030 nm + λ/2 @ 515 nm Request 2-LODW-L-1030-L2-515 246 $
> 18 λ/4 @ 1030 nm + λ/2 @ 515 nm  Request 2-LODW-L4-1030-L2-515 246 $
> 18 λ @ 1064 nm + λ/2 @ 532 nm Request 2-LODW-L-1064-L2-532 246 $
> 18 λ/2 @ 1064 nm + λ @ 532 nm Request 2-LODW-L2-1064-L-532 246 $
> 18 λ/2 @ 1064 nm + λ/4 @ 532 nm Request 2-LODW-L2-1064-L4-532 246 $
> 18 λ/4 @ 1064 nm + λ/2 @532 nm  Request 2-LODW-L4-1064-L2-532 246 $
> 18 λ @ 355 nm + λ/2 @ 1064 nm Request 2-LODW-L-355-L2-1064 246 $
> 18 λ/2 @ 355 nm + λ @ 1064 nm Request 2-LODW-L2-355-L-1064 246 $
> 18 λ/2 @ 355 nm + λ/4 @ 1064 nm Request 2-LODW-L2-355-L4-1064 246 $
> 18 λ/4 @ 355 nm + λ/2 @ 1064 nm Request 2-LODW-L4-355-L2-1064 246 $
> 18 λ @ 800 nm + λ/2 @ 400 nm From stock 2-LODW-L-800-L2-400 246 $
> 18 λ/2 @ 800 nm + λ @ 400 nm From stock 2-LODW-L2-800-L-400 246 $
> 18 λ/4 @ 800 nm + λ/2 @ 400 nm From stock 2-LODW-L4-800-L2-400 246 $
> 18 λ @ 355 nm + λ/2 @ 532 nm From stock 2-LODW-L-355-L/2-532 246 $
> 18 λ/2 @ 800 nm + λ/4 @ 400 nm From stock 2-LODW-L2-800-L4-400 246 $
> 18 λ/2 @ 1030 nm + λ/4 @ 515 nm From stock 2-LODW-L2-1030-L4-515 246 $
> 18 λ/2 @ 1030 nm + λ @ 515 nm From stock 2-LODW-L2-1030-L-515 246 $

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You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.

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Choose from 10 Low Order Dual Wavelength Waveplates