Manual Fixed Beam Expanders

Galilean type beam expanders with fixed expansion ratio that increase the diameter of a collimated input beam to a larger collimated output beam. Focus can be adjusted for input beam divergence to obtain a collimated, divergent or focused output beam. Variants include compact expanders with AR coated fused silica lenses for 1064 nm, 532 nm and 355 nm, and high power versions with IBS-coated thin UV FS lenses for 1030/1064 nm, 515/532 nm and 343/355 nm, low GDD for femtosecond pulses and fixed magnifications from 1.5X to 10X.