Principle of MOPA Fiber Laser Marking Machine
The core components of the MOPA fiber laser marking machine are the Master Oscillator Power Amplifier (MOPA), Q-switching, and a high-repetition-rate pulsed ytterbium-doped fiber laser. A highly reliable DC power supply drives a multimode semiconductor laser under the control of a dedicated control card. The 970±10nm laser emitted by the multimode semiconductor laser is coupled into a 5mm transmission fiber with a metal sheath, generating a 1.06μm wavelength laser in the ytterbium-doped double-clad fiber. The laser is continuously amplified during transmission and then output after beam expansion. The expanded laser beam is projected onto a galvanometer scanner, and by controlling the rapid rotation of the galvanometer and the switching of the laser via a computer, the laser beam scans in the X and Y directions. Through an F-θ lens, it is focused to form a spot with a diameter of a few micrometers that acts on the workpiece, causing surface ablation and vaporization. Finally, the required graphics and symbols are formed on the workpiece surface.

Product Advantages

Long Lifespan: The laser has a lifespan of over 100,000 hours, with excellent beam stability and high device reliability. Low Energy Consumption: The entire machine consumes less than 500 watts, which is 1/10 of traditional laser marking machines. High Definition: Resolution can reach 1 micrometer, making it suitable for industries requiring high depth, small characters, and precision. High Speed: Utilizes a high-speed digital scanning galvanometer system, which is 5-8 times faster than traditional products, with a maximum speed of 12,000 mm/s. Powerful Software: Compatible with software such as CAD, CorelDRAW, AI, Photoshop, and supports PLC, PCX, DXF, AI, JPG, BMP formats. It also supports automatic serial number and date changes, automatic number skipping, QR codes, barcodes, and automatic marking via scanner gun scanning. It enables automation and semi-automation, with software capable of online flight marking and communication via serial port, network, or database.

Applicable Materials
Almost all metals, including copper, aluminum, stainless steel, nickel, iron, aluminum alloys, etc., as well as special surface treatments (such as anodized aluminum, electroplating, painting, oil spraying, vacuum coating). Plastics and rubber (PC, ABS, PC+ABS, PE, PP, etc.), transparent key inks, epoxy resins, ceramics, and more.

MOPA Fiber Laser Marking Machine Application Industries:
Widely used for marking graphics, text, and logos in numerous fields such as integrated circuit chips, computer components, plastic buttons, PVC, PP, ABS, plastic materials, sanitary ware, industrial bearings, watches, electronic communication products, aerospace components, various automotive parts, home appliances, hardware tools, cables and wires, food packaging, jewelry, tobacco, etc. It is also suitable for high-volume production line operations.