Zoom CO2 Laser Beam Expanders

A beam expander can changes the beam size and divergence characteristics. Beam expanders have numerous uses. By expanding a beam prior to focusing, smaller focal spot sizes can be achieved. Beam expanders improve a beam collimation. They are also used to change the beam diameter To meet different requirements. Using a spatial filter with a beam expander can make an asymmetrical beam profile more symmetric and provide more uniform energy distribution.

The beam expanders are used in 10.6 µm,9.4µm,1064nm,633nm,532nm,355nm and 266nm . The beam expanders includes the fixed Series; the adjustable series; the zoom beam expander and Water cool beam expander.The fixed and adjustable beam expanders , according to their shape, can be divided into the Trumpet-shape and the Cylinder-shape ; according to the connecting way ,is divided intocylindrical connection and screw connection.