Laser technology

Laser technology

Permanent, safe marking

Reliable laser technology by Phoenix Contact.

Your advantages

  • Based on pulsed ytterbium fiber laser technology
  • Wide range of materials consisting of aluminum, steel, plastic, and films
  • Direct laser marking means: no inks, no ink ribbon, no toner
  • Permanent marking by means of engraving, annealing or carbonizing
  • High quality: can be printed with barcodes, resolution 500 dpi

Laser sources

Schematic display of a fiber laser  

Schematic display of a fiber laser

Lasers are divided into two operating modes:

  • Continuous beam lasers emit a constant light source, in the same intensity
  • Pulse lasers generate pulsing radiation and are divided according to the temporal duration of the pulses into short or ultra-short pulse lasers

Lasers are specified based on the medium used: solid state and gas lasers. The active medium in solid state lasers are doped glasses or crystals. Foreign ions are included in a range of concentrations in the host crystal. These ions are available in a specified doping (concentration) level. Typical doping materials are neodymium, ytterbium, titanium, and erbium.

The fiber laser is one of the solid state lasers and, due to its compact design and ease of maintenance, is particularly well suited to marking. A typical fiber laser is the ytterbium-yttrium-aluminum-garnet laser.

Ytterbium-yttrium-aluminum-garnet lasers emit infrared radiation, so that the laser beam can be directed through fiber glass cables, in contrast to CO2 laser beams. Due to the short wave length, these lasers can be focused on a smaller surface, thereby achieving a higher resolution than a CO2 laser.


When working with lasers, dusts and gases can be generated. These must be removed from the processing room, to ensure quality remains consistently high. Extraction that suits the respective application is also necessary for occupational health reasons. In order to guarantee the highest possible degree of extraction, using a combination of different types of filters is recommended. A distinction is made between filters based on particle size:

  • Coarse particle filter (particles > 10 µm)
  • Fine particle filter (particle 1 to 10 µm)
  • HEPA filter (particles < 1 µm)

In an ideal scenario, the air from the processing room is first of all pre-filtered using a range of fine particle filters. Then, in a second step, the smallest particles are also filtered from the air using a HEPA filter. In this way, an overall separation efficiency of over 99.9% can be achieved.


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C6 The Exchange
Calmount Park
Dublin 12
D12 XE18