- High Power Applications
- Air-spaced Calcite cubes
- High Polarization Purity
- Wavelength range = 350-2300nm
These are air-spaced Glan Laser polarizers. They use the strong bi-refringence of natural crystal calcite to produce a high degree of p-polarization in the transmitted beam. They provide an extinction ratio of 500,000: 1. In order to permit the use of high power laser beams these cubes have polished side exit faces and a cut out cell to permit the exit of the rejected s-polarized beams. Since Calcite has a good transmittance from the visible to 2300nm and they are useful with most visible and near IR lasers.
| Material: | Laser Grade Calcite |
| Escape Window: | Double |
| Surface Quality: | <20/10 |
| Beam Deviation: | < 3 arc min |
| Transmitted Wavefront: | < λ / 4 @ 633 nm |
| Dimension Tolerance: | < ± 0.20 mm |
| Extinction Ratio: | >500,000:1 |
| AR Coating | Single layer MgF2 on all entrance & exit surfaces |
| Transmission Efficiency: | Tp < 95% |
| Part No. | Clear Aperture | D (mm) | L (mm) | Angular Separation |
| CGLP-08 | 8x8mm | 25.4 | 25.4 | 7.7deg |
| CGLP-10 | 10x10mm | 25.4 | 26.2 | 7.7deg |
| CGLP-15 | 15x15mm | 30.0 | 33.2 | 7.7deg |
| CGLP-20 | 20x20mm | 38.0 | 43.3 | 7.7deg |
