laser cutting copper
Material:  Copper
Method Used:  etch
Depth:  <.002
Laser Type:  20 Watt Q-Switch Fiber Laser
Focal Length Lens:  160mm
Power:
50%-98%
Frequency:
20 kHz- 50 kHz
Speed: 10 – 25 inches per second
Passes: 2
Cycle Time: 44.1,73.78 seconds

Samples were processed using a 20 watt Q-switched fiber laser through a 160mm F-theta lens.