← Back to product family
Top Hat Beam Shaping Lenses FBSR SKU: FBSR-1030-1.0
FBSR series Top Hat beam shapers are single-piece optical elements designed for the generation of round Top Hat profiles. FBSR beam shapers are so-called focal beam shapers and can generate a Top Hat profile in the focal plane of nearly any focusing optics. Each FBSR lens is…
Variant specifications
| Specification | Value |
|---|---|
| Operation Wavelength | 1030 nm |
| Input Beam Diameter @ 1/e² | 1.0 mm |
Shared product specifications
These specifications apply across the Top Hat Beam Shaping Lenses FBSR product family.
SPOT GEOMETRY
| Top Hat width | approximately 2 * λ * f / d, with f = focal length, d = beam diameter @1/e2 |
| Efficiency | up to 95% |
| Homogeneity | ca. ± 2.5% (rel. to average intensity of the Top Hat plateau) |
| Side modes (strongest) | ~70x weaker than line plateau (< 1.5% of input energy) |
| Depth of focus (DOF) | ~30% of the Rayleigh length |
SUBSTRATE SPECIFICATIONS
| Material | Fused silica |
| Transmission | >99% |
| Damage threshold @ 10 ns | 10 J/cm² @ 1064 nm 5 J/cm² @ 532 nm 3 J/cm² @ 355 nm |
| Dimensions | ⌀25.4 x 3 mm |
Product brochures
Shared documentation for the complete product family.