582 UV laser additive for colored plastic

From a foundational standpoint, a UV laser vs a fibre laser differs greatly. UV lasers feature “cold processing”, use ultraviolet light, while fibre lasers use infrared light. Additionally, the UV laser is 355 nm while the fibre laser is 1060 nm. Since they have different types of light, each laser has a separate process of marking. Fibre lasers use high heat with high output to mark materials, while UV lasers use absorption to break down bonds.

A UV laser does not rely on heat for marking, so it can mark heat-sensitive materials without damage. On the other hand, fibre lasers do use heat, so they do not have the capability of marking on heat-sensitive materials without damage. However, fibre lasers may be better for certain metals like iron because of the high output, creating high contrast.