Birefringent filter is made by crystal quartz. It's used in the laser cavity for wavelength selection. We can provide different thickness birefringent filter for our customer's laser applications.
Specifications:
| Material: | Crystal quartz |
| Dimension Tolerance: | +0.0, -0.2mm |
| Thickness Tolerance: | ± 0.02mm |
| Surface quality: | 20/10 |
| Clear Aperture: | 90% of the central area |
| Parallelism: | <5 arc sec |