The advantages of miniaturization and intensification brought by the low manufacturing cost of glass optical fiber, mature technology and the sparacability of optical fiber;
Glass fibers do not require strict phase matching like crystals for incident pumped light, which is due to the wide absorption band caused by non-uniform broadening caused by Stark splitting of the glass matrix;
The glass material has a very low volume-to-area ratio, fast heat dissipation and low loss, so the upconversion efficiency is high and the laser threshold is low;
The output laser wavelength is large: this is because the rare earth ion energy level is very rich and there are many types of rare earth ions; Tunable property: due to the wide energy level of rare earth ions and the wide fluorescence spectrum of glass fiber.
Since there is no optical lens in the resonant cavity of fiber laser, it has the advantages of no adjustment, no maintenance and high stability, which is incomparable with traditional lasers.
Fiber export makes the laser easily capable of a variety of multi-dimensional arbitrary space processing applications, making the design of mechanical systems very simple.
Competent for harsh working environments, with high tolerance to dust, shock, shock, humidity, temperature. No thermoelectric cooling and water cooling are required, only simple air cooling.
High electro-optical efficiency: the comprehensive electro-optical efficiency is as high as 20%, which greatly saves power consumption during work and saves operating costs. High-power, commercialized fiber lasers are six kilowatts.