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Wavelength Types

Different wavelengths of light produced by each laser marker create different types of marks such as engraving, discoloration, or cutting. Therefore, it is important 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 for marking paper, plastic, glass, and ceramic.
The 10.6 μm wavelength is absorbed by transparent materials, so it is often used for applications such as marking films. The development of high-powered models has made it possible to perform functions such as gate cutting of molded parts and PET sheet cutting.
YVO4 Laser Marker
1064 nm wavelength:
Often used for marking metal, plastic, and ceramic.
Ideal for discoloring plastic and producing high-visibility printing. Up until now, YAG laser markers were selected for applications requiring high power and YVO4 laser markers for applications requiring miniature printing at low power. However, the advent of high-powered YVO4 laser markers has allowed them to take over applications that were once the domain of YAG lasers.
YAG Laser Marker
Fiber Laser Marker
1030-2100 nm wavelength:
Often used for marking metal, plastic and ceramic.
Fiber laser markers allow for printing with high power and extremely fast scan speeds while condensing the size of the marking unit. With wavelengths produced in the general range of YAG and YVO4 lasers, Fiber lasers are able to maintain marking quality and save on installation space.
Green Laser Marker
532 nm wavelength:
(SHG wavelength)
These laser markers emit visible green light at a wavelength that is half that of standard wavelength lasers. Compared to standard wavelength laser markers, SHG laser markers have a high absorption rate for a variety of materials, making it possible to limit heat stress.
UV Laser Marker
355 nm wavelength:
(THG wavelength)
This laser has a wavelength that is even shorter than SHG and is in the UV region. One of the features of UV lasers is that, regardless of the material, they have a high absorption rate and generate minimal heat stress.
This minimizes product damage and enables high-contrast marking.
Light wavelength distribution map

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