Material:  Steel
Method Used:  etch
Depth:  >.003
Laser Type:  20 Watt Q-Switch Fiber Laser
Focal Length Lens:  160mm
Power:
98%
Frequency: 20 kHz
Speed: 15 inches per second
Passes: 20
Cycle Time: 1176 seconds

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