Zero Order Wave Plate 17.5mm

Zero Order Wave Plate 17.5mm


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Tower’s 17.5mm Zero order waveplates provide users with a high performance Crystal Quartz retarder with a clear aperture of 15mm. These waveplates are air spaced, having a stainless steel spacer between two crystal quartz plates that form the zero order capability. Zero order waveplates are far less sensitive to temperature variations than multi-order waveplates. Air spaced waveplates have higher thermal stability and power handling capability than contacted or cemented waveplates. There are no failures as occur with contacted waveplates coming apart. Angular alignment of the waveplates is also more accurate. Tower Optical waveplates are made from Laser quality Crystal Quartz. Each plate is AR coated on both sides. Standard retardations are ½ or ¼ wave. These waveplates are offered either unmounted with a diameter of 17.5mm or mounted in a 25.4mm anodized Aluminum mounting ring with a 15mm clear aperture. The standard wavelengths available are shown in the chart below. As a special feature, Tower offers the ability to supply these zero order waveplates at wavelengths within a range of 10–20nm from any of those listed on the chart. Other wavelengths are available on a custom order basis.

Waveplate Specifications

Material: Crystal Quartz – Laser quality
Waveplate Thickness Range: 0.3 to 1.3mm
Wavefront Distortion: λ/10 @ 632.8nm
Surface Quality: 10-5 Scratch/Dig
Parallelism (Wedge): 0.5 arc seconds
Wavelength Range: 237nm – 2021nm
Retardation Tolerance: ±0.005 waves @ 632.8nm
Coating: Anti Reflective, R<0.25% per surface
Damage Threshold:
1 kW/cm2-CW,3.5 J/cm2 @10 ns
Diameter: 17.5mm, +0.0/-0.25mm unmounted; 25.4mm, +0.00/-0.25mm mounted
Mounted Thickness: 7.8, +0.00/-0.25mm

  • 15mm Clear Aperture
  • 17.5mm Unmounted Diameter
  • 1″(25.4) Mounted Diameter
  • Wide Range of Wavelengths
  • 1/2 and 1/4 Wave Retardation
  • Waveplates Are AR Coated
  • Very High Laser Quality
  • High Performance Specifications

Standard Wavelengths
for 17.5mm Waveplates

237 248 266 308 325
355 399 405 408 413
423 442 458 488 515
532 556 589 633 647
650 660 670 676 694
710 767 780 800 808
820 830 850 905 946
980 1050 1064 1112 1315
1550 1762 1988 2021  

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We make custom versions of everything on this site. Send us your drawings or specifications and we will provide a quotation.