Dual Wavelength Waveplate
This waveplate is a special kind of multi order waveplate. Dual wavelength waveplate is designed to be used in dual wavelength setups, for example, it can be operated as a quarter waveplate @1064 nm and as a half waveplate @532 nm at the same time. It’s always used to manage the states of polarization of laser beams to obtain maximum conversion efficiency.
- Thickness: < 2.0 mm
- Optional wavelength available
- High damage threshold
Specifications
| Material | Crystal Quartz |
| Dimension Tolerance | + 0.0/ -0.2 mm |
| Surface Quality | 20/10 |
| Clear Aperture | > 90% central area |
| Wavefront Distortion | < λ/8@632.8 nm |
| Parallelism | < 1 arc second |
| Retardation Tolerance | < λ/100 |
| AR Coating | R < 0.5%@two wavelengths |
| Damage Threshold | > 5 J/cm2, 20 ns, 20 Hz@1064 nm |
Model
| Wavelengths, nm | Retardation, λ | Dia., mm | CA, mm |
| 780 + 635 | 1/4@780 nm + 1/4@635 nm | 12.7 | 11.52 |
| 1064 + 532 | 1@1064 nm + 1/2@532 nm, 1/2@1064 nm + 1@532 nm, 1/2@1064 nm + 1/4@532 nm, 1/4@1064 nm + 1@532 nm, 1/4@1064 nm + 1/2@532 nm | 12.7 | 11.43 |
| 1064 + 532 | 1/2@1064 nm + 1@532 nm, 1@1064 nm + 1/2@532 nm, 1/2@1064 nm + 1/4@532 nm, 1/4@1064 nm + 1@532 nm, 1/4@1064 nm + 1/2@532 nm | 25.4 | 22.86 |
Coating Vs. Retardation Curve
