Restricted space requirements are the perfect fit for our compact beam expanders. These expanders consist of only 2 lenses and provide the same optical performance as the standard series. The overall length is only 44.7 mm. Even divergence adjustment and mechanical threads are still compatible to the standard EXP series. Of ...

Our standard beam expander series covers fused silica lenses from 1.5x up to 20x with wavelengths from 266 nm to 1,980 nm. For collimation, we use an air spaced 2-lens-system in order to minimize aberrations and reach diffraction limited performance. In addition, the divergence of the expanded beam can be adjusted easily. The design ...

Sill Optics fused silica beam expanders series „ALPHA“ (Absorption Low Plus High Aperture) are especially designed for large laser diameters. High power lasers emitting collimated 1/e² beam diameter of about 6…9 mm. Thus, the full beam diameter could achieve 18 mm. The limitation of this diameter will cause a ...