The stepper controller is an Arduino Mega running the Marlaser firmware, though [Owen] admits perhaps a laser cutter-specific driver board would have been better as he spent many hours trying to ...

including an integrated laser driver, an updated RX front-end optimized for optical signaling, and a non-linear DSP equalization that corrects for both static and dynamic nonlinearity components.

A man was apprehended after an alleged laser strike on the Nebraska State Patrol helicopter, authorities said.