Fiber laser marking machines, or fiber lasers, are high-precision devices that use a focused laser beam to permanently mark or engrave various materials, mainly metals. In these machines, the laser beam is generated by a fiber laser source, which is guided through an optical fiber and focused onto the surface by a galvanometric scanning head, providing very fine and fast marking. They are designed for durable, precise and long-lasting application of information – such as serial numbers, barcodes, logos or security symbols – and are widely used in industry, medicine, electronics, automotive manufacturing, jewelry processing and other areas where high-quality marking is required.