UV laser and fiber laser are two laser technologies commonly used for marking, and they have some significant differences in the marking process.

UV laser and fiber laser wavelengths

Ultraviolet laser: The wavelength of ultraviolet laser is generally between 200 and 400 nanometers. UV laser has a shorter wavelength and can produce a high-energy beam, which is suitable for fine marking of material surfaces, especially in applications that require high resolution and precision.

Fiber laser: The wavelength of fiber laser is usually between 1000 and 2000 nanometers. Compared with UV laser, fiber laser has a longer wavelength and more concentrated energy. It may be better for marking certain materials, especially when deep marking is required or heat-sensitive materials need to be processed.
                      
 

The difference between power and energy

Ultraviolet laser: Due to its shorter wavelength, ultraviolet laser can often provide higher energy density and is suitable for rapid marking of materials in a short time, especially for hard materials or fine marking that requires high precision.

Fiber laser: Although fiber laser has a longer wavelength, due to the use of optical fiber transmission, the energy loss is small, so it can provide stable power output. For certain applications that require stable and long-lasting marking, fiber lasers may be more suitable.

                       
 

Applicable materials

Ultraviolet laser: Ultraviolet laser can achieve good marking effects on most materials, including metal, plastic, ceramics, glass, etc. However, it should be noted that for some heat-sensitive or easily damaged materials, laser parameters may need to be controlled to avoid overheating.

Fiber laser: The wavelength of fiber laser is relatively long, and the marking effect on certain specific materials is more outstanding, especially the deep marking or cutting effect on some metal materials is better.

Generally speaking, UV laser and fiber laser have their own advantages and suitable scenarios in marking applications. How to choose the appropriate laser type depends on the customer's specific needs, including the type of material to be marked, the required marking effect, the production environment and budget.