Material:  aluminum Power:  50%
Method Used:  etch Frequency:  35kHz
Depth:  <.002 Speed:  25 inches per second
Laser Type:  20 Watt Q-Switch Fiber Laser Passes: 1
Focal Length Lens:  160mm Cycle Time:  15.6 seconds

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