Large Zero Order Waveplates 38.1 and 50.8 mm
- Laser Quality Crystal Quartz
- Air Spaced for High Power
- Clear Aperture of 85% OD
- Mounted or Unmounted
- Retardations of 1/2 and 1/4 Wave
- Waveplates are AR Coated
- Standard Wavelengths
- Custom Wavelengths available
- Rugged 2 and 3” Mounting Ring
Tower’s Large aperture Zero order waveplates provide users with the capability of handling new applications where beam size and/or beam position moves over larger distances. The waveplates described here 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.
| Waveplate Specifications |
| Material: Crystal Quartz – Laser quality |
| Waveplate Thickness Range: 3 to 4mm |
| Wavefront Distortion: λ/10 @ 632.8nm |
| Surface Quality: 40-20 Scratch-Dig |
| Parallelism (Wedge): 0.5 arc seconds |
| Wavelength Range: Per table to the right |
| 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: 38.1mm, +0.0/-0.25mm unmounted;
50.8mm, +0.0/-0.25mm mounted, or, 50.8mm, +0.0/-0.25mm unmounted, 76.2mm +0.0/-0.25 mounted |
| Mounted Thickness: 9.0, +0.00/-0.25mm |
Tower Optical large waveplates are made from Laser quality Crystal Quartz. Each plate is AR coated on both sides. Retardations are ½ or ¼ wave. The waveplates are offered either unmounted or mounted anodized Aluminum mounting rings.
Standard Wavelengths for 38.1 And 50.8mm Waveplates
| 355 | 532 | 632.8 | 800 | 1064 |
| Ordering Information |
| 38.1 mm WP Unmounted |
| Z-38.1-A-R-N-WL . . . . . . . . . . . . . . . . . .$1,395 |
| 38.1 mm WP Mounted in a 50.8 mm ring |
| Z-38.1-A-R-E-WL . . . . . . . . . . . . . . . . . .$1,450 |
| 50.8 mm WP Unmounted |
| Z-50.8-A-R-N-WL . . . . . . . . . . . . . . . . . .$2,040 |
| 50.8 mm WP Mounted in 76.2 mm ring |
| Z-50.8-A-R-G-WL . . . . . . . . . . . . . . . . . .$2,095 |
| R = Retardation: .500 or .250, WL = Wavelength |
We make custom versions of everything on this site. Send us your drawings or specifications and we will provide a quotation.