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 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 metal-sheathed transmission fiber, generating a 1.06-micrometer wavelength laser in the ytterbium-doped double-clad fiber. The laser is continuously amplified during transmission and then expanded and output. The expanded laser beam is projected onto a galvanometer scanner, and the rapid rotation of the galvanometer and the switching of the laser are controlled by a computer, enabling the laser beam to scan in the X and Y directions. The laser is focused by an F-θ lens to form a spot with a diameter of several micrometers, which 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. Excellent beam stability and high equipment reliability. Low energy consumption: The entire machine consumes less than 500 watts, which is 1/10 of traditional laser marking machines. High resolution: Resolution can reach 1 micrometer, making it suitable for industries requiring deep, small characters, and high precision. High speed: Equipped with a high-speed digital scanning galvanometer system, it is 5-8 times faster than traditional products, with a maximum speed of 12,000 mm/s. Powerful software: Compatible with CAD, CorelDRAW, AI, Photoshop, and other software. Supports PLC, PCX, DXF, AI, JPG, BMP, and other formats. Enables automatic serial number and date changes, automatic number skipping, QR codes, barcodes, and automatic marking via scanner gun. Supports automation and semi-automation. The software has online flight marking capability and enables serial port, network, and database communication.
Applicable Materials
Almost all metals, including copper, aluminum, stainless steel, nickel, iron, aluminum alloys, etc., as well as special surface treatments (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 applicable for marking graphics, text, and logos in numerous fields such as integrated circuit chips, computer components, plastic keys, PVC, PP, ABS, plastics, sanitary ware, industrial bearings, watches, electronic communication products, aerospace components, various automotive parts, home appliances, hardware tools, molds, wires and cables, food packaging, jewelry, tobacco, etc. It is also suitable for high-volume production line operations.