What’s the difference between a CO2 Laser and a Fiber Laser?

Laser Q&ACategory: Laser QuestionsWhat’s the difference between a CO2 Laser and a Fiber Laser?
Serena Staff asked 11 months ago
1 Answers
Jordan Staff answered 11 months ago

Fiber lasers and CO2 lasers react very differently on different materials because of the differing wavelengths of the laser beams.
The wavelength of a fiber laser (1.064 microns) is exactly ten times smaller than the CO2 wavelength of 10.64 microns, which makes it ideally suited for absorption in most metals, but this small wavelength inhibits its ability to be absorbed by many other materials (wood, acrylic, plastics, fabrics, etc.)
A CO2 laser beam is not easily absorbed by metal, but can easily be absorbed by many organic materials such as wood, acrylic, rubber, etc, while it tends to reflect off of most metal surfaces hence the reason you need to use a special marking solution in order to mark metals with your CO2 laser.
It’s the different wavelengths of the two beams that are mainly responsible for the different types of materials that they will react with.