Ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres fit into smaller packages. Coupling efficiency is generally >90% due to the simplicity of these lenses.
Specifications:
| Material: | N-BK7 grade A optical glass |
| Dimension Tolerance: | +0.0, -0.03mm |
| Surface quality: | 60/40 |
| Clear Aperture: | >85% |
| Surface Figure: | λ/2 @633nm |
| Centration: | 3 arc minutes |
| Note: | Diameter: available from Φ1.0mm to Φ25mm All surfaces polished |