Why the service life of fiber laser marking machine is so long

If you have a little understanding or cognition of laser marking machine, I believe everyone knows that the life of fiber laser marking machine is about 10W hours. However, the life of the semiconductor laser marking machine is only about 2W hours.

First of all, as the working time of the semiconductor laser marking machine prolongs, the threshold current of the laser will slowly increase, which will lead to the degradation of the laser of the semiconductor laser marking machine. The semiconductor laser used has a very small die, high operating current density and optical power density, and the semiconductor single crystal material used as a laser material is prone to defects. These defects gradually develop under the action of electricity and light, resulting in device performance. degenerate. The mirror surface of the laser is formed by a cleavage process, and the mirror surface itself is affected by environmental conditions and contamination will also cause the performance of the laser to degrade. Die welding is also a key technology. The die is welded on the heat sink, and the active distance is only a few microns from the heat sink; the semiconductor laser will generate heat when working. If there is too much solder, it will slowly climb when heated, making the semiconductor laser A short circuit occurs, resulting in laser degradation; Fiber Laser refers to a laser that uses a rare-earth-doped glass fiber as a gain medium. Fiber lasers can be developed on the basis of fiber amplifiers: under the action of pump light, the fiber is very easy to The formation of high power density results in the 'number inversion' of the laser energy level of the laser working material. When a positive feedback loop (constituting a resonant cavity) is properly added, the laser oscillation output can be formed. Any laser marking machine equipment needs our careful maintenance. In fact, the service life of the semiconductor laser marking machine is not fixed. As long as we pay attention to maintenance, it can still prolong its service life. The same is true for fiber laser marking machines. As long as they are cleaned, cleaned, and maintained regularly, whether it is a semiconductor laser marking machine or a fiber laser marking machine, its service life can be basically extended.

With more and more domestic manufacturers developing and producing fiber lasers, and the technology is becoming more and more mature, the price of fiber laser marking machines has also slowed down, and semiconductor laser marking machines have gradually been replaced by optical fibers . Of course, any laser equipment needs our careful maintenance, whether it is a fiber laser marking machine or a semiconductor laser marking machine. Laser marking machines produced by Laser Technology Co., Ltd., Yantai laser marking machines, and Weifang laser marking machines not only have long service life, stability, good service, but also reasonable prices. They are your good choices!

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