The achromatic waveplates are made from 25.4 mm crystalline quartz substrate and magnesium fluoride. These substrates are cemented to each other. This reduces the number of surfaces requiring AR coating while increasing the physical size in order to allow for larger beam diameters.
| waveplates | Achromatic cemented |
| Thickness | 0.3 to 1.3 mm |
| Wave front deformation | λ/4 @ 633 nm |
| Surface quality | 20/10 scratch/dig |
| Parallelism | 0.5 seconds |
| Retardance tolerance | λ/100 with respect to wavelength range |
| Temp. coefficient of retardance | less than λ/500 per °C |
| Beam divergence/parallelism | Less than 1 minute |
| Angle of incidence tolerance | For max. 1 % |
| Retardance variation | +/-3° |
| Storage temperature range | -40°C to +75°C |
| Coating (medium reflection) | > 1% for 465–610 nm per surface, > 0.7% for 610–850 nm per surface, > 0.6% for 700–1000 nm per surface, > 0.5% for 1200–1650 nm per surface |
| Damage threshold | 2 J/cm2 (8 ns pulse @ 1064 nm); 500 kW/cm2, CW |
| Diameter | 25.4 mm with retaining ring |
| Ring thickness | 30 mm |
