The MOPA laser allows marking plastics with more readable and higher contrast results. It marks (anodized) aluminium in black or reproduces colours on steel. In addition, the MOPA laser marks with just as high a quality level, but is often faster than a fiber laser.
With the MOPA laser, pulse duration can be selected from a range of preset values between 4 and 200 ns. The MOPA laser is one of the most flexible lasers on the market. It can be used for a wide range of applications. As far as pulse duration is concerned, it can simulate the characteristics of a traditional fiber lasers (relatively long pulses) and those of solid state lasers (relatively short pulses) such as Nd:YAG or Nd:YVO4 (vanadates).
With short duration pulses and low pulse energy, the material is less heated and the area exposed to heat is reduced. This translates into more advantages and the ability to perform laser marking on metals and plastics.