Laser Marking Machines

The Technology Behind UV Laser Marking Ultraviolet (UV) laser marking machines operate on the principle of photochemical ablation. Unlike infrared lasers that rely on thermal energy, UV lasers emit photons with higher energy levels, typically in the wavelength range of 355 nm. This high-energy photon stream enables the breaking of molecular bonds on the material surface without significant thermal impact. The result is a precise, high-contrast mark achieved through a non-contact process that minimizes damage to the substrate. The core component of a UV laser marking machine is the diode-pumped solid-state (DPSS) laser. It employs a nonlinear crystal to generate the third harmonic of the fundamental infrared wavelength, effectively converting 1064 nm infrared light into 355 nm ultraviolet light. The beam quality and stability are critical, requiring sophisticated beam shaping and focusing optics to maintain consistent marking performance. Advantages of UV Laser Marking over Other Method...