Trotec is offering the MOPA fiber laser source as an option for its SpeedMarker galvo laser marking systems. MOPA technology opens up a new world of possibilities for marking metals and plastics because it allows the user to select pulse durations (between 4 and 200 ns), which provides a much wider range of laser parameters, more options for creating high-contrast, homogeneous markings, and the ability to mark colors on some metals.