Deformation Measurements on CO2-Laser Output Couplers in Operating High-Power Laser Systems
The dynamic behaviour of output couplers in high power CO2-lasers with power levels in excess of 1 kW has been investigated by means of Interferometry. The deformation of the front- and back-surface of a ZnSe-partial reflector could be confirmed. When examining, the transmitted wavefront, the bulk material clearly shows a power-correlated behaviour. The impact of these measurements on laser optics will be discussed.
KeywordsOutput Coupler Fringe Pattern Rear Surface Dual Symmetry Laser Mirror
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