Glan Laser Double Escape Polarizing Cubes (CGLP)
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% |