Achromatic Waveplates
Broad Wavelength Band Compatibility: The achromatic waveplate exhibits a virtually flat response of phase delay over a broad wavelength band, typically spanning hundreds of nanometers.
Chromatic Dispersion Mitigation: By utilizing two birefringent materials with complementary properties, the achromatic waveplate effectively attenuates chromatic dispersion effects.
Versatile Phase Retardation Values: Available in lambda/2 and lambda/4 retardation, offering flexibility for various polarization transformations.
Applications: Tunable Laser Sources, Femtosecond Laser Systems, Spectroscopy, Broadband Light Sources, etc.
An Achromatic Waveplate is a specialized type of Zero Order waveplate, constructed using two different birefringent materials, such as crystal quartz and magnesium fluoride. The complementary birefringent properties of these materials effectively attenuate chromatic dispersion effects, resulting in a virtually flat response of phase delay over a broad wavelength band. This unique characteristic makes achromatic waveplates an excellent choice for applications involving tunable laser sources, femtosecond laser systems, spectroscopy, and other broadband light sources.
Specifications:
| Material | Quartz+MgF2 |
| Aperture | 18mm |
| Retardation | λ/4 or λ/2 |
| Parallelism | <1 arc Sec |
| Surface Quality | 20/10 S/D |
| Damage Threshold | >500 MW/cm^2 |
| Retardation Tolerance | < λ/100 |
| Mounted Diameter | 25.4mm (1 inch) |
| Coating | AR coating |
| Wavelength (Standard） | 450-650nm，690-1200nm, 900-2000nm |
Advantages:
- Broad Wavelength Band Compatibility: The achromatic waveplate exhibits a virtually flat response of phase delay over a broad wavelength band, typically spanning hundreds of nanometers.
- Chromatic Dispersion Mitigation: By utilizing two birefringent materials with complementary properties, the achromatic waveplate effectively attenuates chromatic dispersion effects.
- Versatile Phase Retardation Values: Available in lambda/2 and lambda/4 retardation, offering flexibility for various polarization transformations.
Applications:
- Tunable Laser Sources: Ideal for applications requiring adjustable laser outputs.
- Femtosecond Laser Systems: Suitable for high-precision laser systems demanding precise polarization control.
- Spectroscopy: Enables accurate analysis of light spectra across a broad wavelength range.
- Broadband Light Sources: Perfect for applications involving broadband light sources, such as telecommunications and imaging.
Kingwin Optics offers Achromatic Half Waveplates and Achromatic Quarter Waveplates with AR coatings. These waveplates are constructed using single-crystal quartz and magnesium fluoride (MgF2) plates, which can be either cemented together with NOA61 (a high-performance optical grade adhesive) or designed with an air gap between them.
