Analysis of the principle of fiber laser coding machine

The fiber amplifier developed by the fiber laser coding machine using doped rare earth elements has brought revolutionary changes to the field of optical wave technology. Since any optical amplifier can form a laser machine through an appropriate feedback mechanism, fiber laser machines can be developed based on fiber amplifiers.

Not affected by harsh environments and temperature changes

In the event of a power outage, the battery and car cigarette lighter can be used for operation. Before the emergence of fiber lasers, laser marking systems generally used continuous or pulsed CO2 lasers and Nd YAG lasers as light sources. Compared with traditional laser sources, fiber lasers have superior performance and a divergence angle that is 1/4 of that of semiconductor pumped lasers (more suitable for the precision and fine marking industry); The electro-optical conversion efficiency is 1/10 of that of a solid-state laser marking machine pumped by a flash lamp; Its average working hours can reach 100000 hours;
3. Fiber laser is completely air-cooled, without the need for refrigeration units, cooling water pipelines, temperature controllers, and other supporting equipment. It has a reduced size and energy consumption, and the user's cost of use is much lower than that of traditional laser light source marking systems.
4. The ETL fiber laser operates with a repetition rate of 10-100KHZ pulses, and the finished product of the fiber laser with an average power output of 10-20W has a volume of only 58CM * 280 * 56CM and a weight of 10KG; Because laser diodes work with voltage, the electro-optical efficiency of fiber optic machines can reach up to 70%. The driving power supply can be supported by UPS power supply in the event of a power outage, with a power consumption of only 160W. Applicable materials and industry applications..

Featuring small size, long semiconductor module lifespan (>500000 hours), low power consumption (160Q), high beam quality, USB interface, and support for various operating systems such as WIN98/2000/XP;

The characteristics of different types of fiber lasers should mainly consider the following points:

(1) The lower the threshold, the better; (2) The linearity between output power and pump optical power is good; (3) Output polarization state; (4) Pattern structure; (5) Energy conversion efficiency; (6) Laser operating wavelength, etc.
Compared with semiconductor laser machines, the superiority of fiber laser machines mainly lies in the fact that fiber lasers are waveguide structures that can accommodate strong pumping, have high gain, high conversion efficiency, low threshold, good output beam quality, narrow linewidth, simple structure, high reliability, and are easy to achieve coupling with fibers..