Low Power Linear Polarizer, 400-700nm
This polarizer is fabricated by bonding dichroic material between two glass substrates. When natural light passes through, one orthogonal polarization component is strongly absorbed while the other is transmitted with low loss.
It is widely used to convert natural light into linearly polarized light with high polarization purity. Compared with polarization prisms, it features a larger acceptable incident angle and can be manufactured with large clear aperture. However, it is not suitable for high-power laser applications.
- Operating Wavelength: 400–700 nm
- High Extinction Ratio: > 1000:1
- Wide Incident Angle
- Large Aperture Available
Parameters
| Base Material | K9 or B270 | Surface Quality | 60-40 |
| Extinction ratio | > 1000:1 | Clear aperture | > 90% |
| Dimension Tolerance | + 0/ -0.2 mm | Acceptance Angle | > 20° |
| Thickness | ≈ 2.5 mm | Parallel polarized light single-pass transmittance | > 70%@633 nm |
| Working Wavelength | 400~700 nm | Damage Threshold | Transmission axis: > 10 W/cm², Extinction axis: > 1 W/cm² |
Model
| Dia., mm | Wavelength, nm | Extinction ratio |
| Φ12.7 Φ25.4 Φ30 Φ50.8 | 400-700 | 1000: 1 |