The design of the Beam Expanders is based on a Galilean Telescope configuration which is corrected as an afocal system for use over a range of narrow wavebands. The wavefront illustrations give the design performance of these lenses. Apart from expanding a beam, this lens allows the control of laser beam divergence to produce smaller beam diameters at large distances. The adjustable mount and locking ring permit variable setting of the beam diameter over long distances.
Expansion ratio 2.5 X or 5 X
Lenses antireflection coated
Focusing range: 2 m to infinity
High energy laser beam expansion
Two lens system beam expanders 10BE01 are focusable to minimal distance 2 m. In such type beam expander aberrations can be totally compensated only in one point. Depending on customer needs and application we can customize beam expander lenses to compensate aberrations in region of 2 m focus point or for infinity. Beam expanders could be customized for any wavelength from the range of 450-2000 nm
