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Waveplate (Waveplate), also called phase retarder, is a kind of birefringent material (mainly birefringent crystals such as quartz, mica, calcite, etc.), which generates optical path difference (or Optical components that change the polarization state of light. When the incident light passes through different types of parametric wave plates, the outgoing light is different, and can be linearly polarized, elliptically polarized, circularly polarized, etc.
Product Description
Shanghai OPTEK can prepare various high-precision wave plates according to customer's customized requirements, including glued zero-order 1/2 delay wave plates, glued zero-order 1/4 retardation wave plates, multi-level 1/2 delay wave plates, multi-level Level 1/4 delay wave plate and achromatic wave plate, etc.
Product Parameters
| Classification | Zero order wave plate | multi-stage wave plate | Achromatic wave plate |
| Material | Quartz , MgF2 _ | Quartz , MgF2 _ | Quartz , MgF2 _ |
| Dimensional tolerance | +0.0 / -0.2mm | +0.0 / -0.2mm | +0.0 / -0.2mm |
| smoothness | 20/10 | 40/20, 20/10 | 40/20 |
| wavefront distortion | λ/ 10 @ 632.8nm | λ/ 10 @ 632.8nm | λ/ 4 @ 632.8nm |
| Parallelism | ≤10″ | ≤10″ | ≤10″ |
| Delay accuracy | λ /60- λ /200 ( λ <400nm)λ /200- λ /400 (400nm< λ <700nm) λ /400- λ /600 ( λ >700nm) | ＜λ/300 | ＜λ/50 --- λ/2 achromatic wave plate＜λ/100 --- λ/4 achromatic wave plate |
| standard wavelength | 266, 355, 532, 633, 780, 808, 850, 980, 1064, 1310, 1480, 1550nm | 266, 355, 532, 633, 780, 808, 850, 980, 1064, 1310, 1480, 1550nm | 4 00 - 700nm _700-1000 nm 1 1 00-1650 nm |
| coating | AR, R＜0.25% @design wavelength | AR, R＜0.25% @design wavelength | AR, R＜0.5% @design wavelength |
| damage threshold | 2MW/cm 2 , 2J/cm 2 , 10ns | 2MW/cm 2 , 2J/cm 2 , 10ns | 500W/cm 2 , 4J/cm 2 , 20ns |
