MOPA Color Laser Engraving Settings for Stainless Steel
MOPA fiber lasers color stainless steel by growing a thin oxide film whose thickness bends light into a hue. On a 20W source, gold starts near 550 mm/s at 230 kHz with short pulses, while deep blue sits near 250 mm/s at 80 kHz with long pulses. Exact values are machine specific, so run a color test matrix first.



















