Fiber laser used long double cladding fiber as the gain medium, by high-power multimode laser diode pumped laser, resulting in optical fiber waveguide stimulated oscillation increase, and small loss, good stability and is not influenced by the external dust and steam mechanical loosening, high reliability, laser beam output 1064nm for stable TEM00 mode (Circular spot beam), close to perfect, configuration of optical isolator, can prevent the high reflectance laser damage. Fiber laser with high photoelectric conversion efficiency, high pulse repetition frequency (average 20-80kHz, maximum to 1000kHz), the output power stability of small volume, low heat, can be 50 kilowatts and below the use of air cooling, and greatly prolongs the service life, up to 100 thousand hours, truly free maintenance.At present, our company's existing optical fiber laser marking machine in accordance with the power configuration is generally divided into 10W, 20W, 30W, 50W, etc., the conventional 10W, 20W. In terms of shape and function, they are desktop, online, portable, etc.As a modern precision machining method, fiber laser marking machine has the following advantages over traditional machining methods such as corrosion, electrical discharge machining, mechanical scribing, and printing:1. the use of laser processing methods, and the workpiece between the absence of processing force, with no contact, no cutting force, little heat advantages, to ensure the original accuracy of the workpiece. At the same time, it has a wide adaptability to materials. It can make very fine mark on the surface of many materials, and the durability is very good;2. the laser has good spatial control and time control, and it has great freedom for the material, shape, size and processing environment of the object, especially for automatic processing and special surface processing. And the processing method is flexible, can meet the needs of the laboratory type individual design, and can also meet the requirements of industrialized mass production;3. laser scribing fine, line can reach millimeter to micron level, laser marking technology made mark, copy and change are very difficult, the product anti-counterfeiting is extremely important;4. laser processing system and computer numerical control technology combining a high-efficiency automatic processing equipment, can play a variety of characters, symbols, and patterns, easy to use software design marking pattern, change marker content, adapt to the modern production of high efficiency, fast-paced requirements;5. laser processing without pollution source is a clean and pollution-free processing technology of high environmental protection.