Technology
Permanent marking is not one process — it is three, defined by wavelength. The way a laser beam interacts with a material surface is set by its wavelength, and that decides which parts you can mark, how fine the detail is, and how much heat reaches the substrate.
01 — Three Wavelengths
Every marking effect traces back to how the material absorbs the beam. These are the three source families AODEQI builds.
01 — Fiber
1064 nm
1064 nm
A near-infrared beam generated in a doped optical fiber. Metals absorb this wavelength strongly, so the energy concentrates at the surface and vaporizes material for deep, high-contrast, permanent marks.
02 — UV
355 nm
355 nm
A 355 nm ultraviolet beam can support fine marks with reduced heat effects on suitable plastics, glass and coated parts. Both photochemical and thermal effects may occur; the term cold marking does not guarantee damage-free results. Test the actual material and required mark.
03 — CO₂
10.6 µm
10.6 µm
A far-infrared beam from a gas laser. Organic and non-metallic materials absorb this wavelength well, producing clean marks on wood, acrylic, leather, paper and packaging at production-line speed.
Power ranges and material fit are indicative and confirmed by sample testing on your actual parts. Source construction and cooling vary by model.
02 — Side by Side
Fiber, UV, CO₂, MOPA and Handheld — wavelength, power range, typical materials, typical applications, marking speed and marking effect, in a single engineering table so you can narrow the right source before you send samples.
Open the Laser Comparison Table →5
Machine families compared
6
Engineering parameters per family
110–300
mm marking area range
03 — Resources
FAQ
Power selection, lens and marking area, speed, material compatibility, software, training, spares and shipping — the questions engineers ask before ordering.
Read the FAQ →Technical Notes
Short technical notes on wavelength choice, marking speed and throughput, lens selection and how process parameters change the result on real materials.
Browse Technical Notes →Send us your material and a sample part. Our engineers recommend the source, power and lens, and confirm the result on your actual workpiece.