Different wavelengths of light produced by a laser marker create different types of marks. Here's how to match the desired type of mark with the appropriate laser marker.
LASER MARKER APPLICATIONS (BY TYPE)
CO2 Laser Marker
10.6 μm wavelength:
Often used to mark paper, plastic, glass and ceramic Can be used for film marking applications since the wavelength is absorbed by transparent materials High-powered models can perform gate cutting and PET sheet cutting
YVO4 Laser Marker
1064 nm wavelength:
Often used to mark metals, plastics and ceramics Ideal for discoloring plastic and producing high-visibility marks In the past, you had to choose between YAG lasers (for high power) and YVO4 lasers (for detailed processing). The advent of high-powered YVO4 laser markers has allowed them to take over applications once ruled by YAG systems.
YAG Laser Marker
Fiber Laser Marker
1030-2100 nm wavelength:
Often used to mark metals, plastics and ceramics Print with high power and fast scan speeds Smallest marking unit size
Green Laser Marker
532 nm wavelength:
(SHG wavelength) Emit visible green light Much higher absorption rate than conventional IR lasers, making it possible to limit heat stress while marking
UV Laser Marker
355 nm wavelength:
(THG wavelength) The shortest commonly available wavelength UV light has a high absorption rate on nearly every material, which minimizes product damage and enables high-contrast marking.