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As a core driving force in industrial manufacturing, laser technology itself is constantly advancing. In general, lasers are developing in the four directions of "faster, higher, better and shorter". Fiber laser machine uses are very widely, including laser fiber optic communication, laser space telecommunication, industrial shipbuilding, automobile manufacturing, laser engraving, laser marking, laser cutting, laser cleaning, printing rollers, metal and non-metal drilling/cutting/welding, Military national defense security, medical equipment and equipment, large-scale infrastructure construction, etc. Because there is no optical lens in the resonant cavity of the fiber laser source, it has the advantages of maintenance-free ,adjustment-free and high stability, which is unmatched by traditional lasers. The fiber export makes the laser easily competent for various three-dimensional arbitrary space processing applications, which makes the design of the mechanical system very simple. Competent in harsh working environments, it has a high tolerance for dust, shock, shock, humidity and temperature. No need for water cooling and thermoelectric cooling , only simple air cooling.

fiber laser machine


Fiber laser machine uses in the additive manufacturing and metal cutting markets is expected to continue to grow. Although it is still in its infancy in the additive market, its rapid growth has confirmed this speculation. With continued improvements in production efficiency and more competitive costs, fiber laser cutting applications will continue to be the economic first choice for manufacturers. This also explains why fiber laser machines are now entering more application fields and gradually replacing the market status of non-laser technologies such as water jet, plasma, punching, and shearing.


High-power fiber laser technology is one of the hottest research directions in the field of optoelectronic technology in recent years, especially in the field of laser technology. It has been widely used in medical treatment , military defense, industrial manufacturing, energy exploration and other fields. From the perspective of the development trend of the entire high-power laser industry, fiber laser machines combine the waveguide characteristics of optical fibers and the pumping characteristics of semiconductors, and have excellent advantages such as compact structure, good heat dissipation, high efficiency ,good beam quality, and flexible operation.


Principle of Fiber Laser Machine

Optical fiber amplifiers developed by using optical fibers doped with rare earth elements have brought revolutionary changes to the field of lightwave technology. Since any optical amplifier can form a laser with the proper feedback mechanism, fiber laser machines can be developed on the basis of fiber amplifiers. The currently developed fiber lasers mainly use rare-earth element-doped fiber as the gain medium. Because the fiber core of the fiber laser is very thin, it is easy to form a high power density in the fiber under the action of the pump light, resulting in the "number inversion" of the laser energy level of the laser working material. Therefore, when a positive feedback loop (constituting a resonant cavity) is properly added, laser oscillation can be formed. In addition, because the fiber matrix has a wide fluorescence spectrum, fiber lasers can generally be made tunable, which is very suitable for WDM system applications.

Compared with semiconductor lasers, the advantages of fiber laser machines are mainly reflected in: fiber laser machines are waveguide-type structures, capable of high-capacity pumping, high gain, high conversion efficiency, low threshold, good output beam quality, narrow line width, simple structure, High reliability characteristics, easy to realize and optical fiber coupling.

fiber laser machine


Fiber laser uses: fiber laser marking machine in industry

Industrial production requires lasers with small size, quietness, high reliability, and easy manipulation. Fiber lasers are widely favored by people for their compact structure, high light conversion efficiency, short warm-up time, little influence by environmental factors, maintenance-free, and easy coupling with light guide systems composed of optical lenses or optical fibers. Now, fiber lasers are gradually replacing traditional lasers in the leading positions of laser marking, laser welding, laser cutting and other fields. In the field of marking, due to the high beam quality and positioning accuracy of fiber lasers, the fiber marking system is replacing the Nd:YAG pulsed laser marking system pumped by carbon dioxide lasers and xenon lamps, which is not efficient.


fiber laser machine


Fiber laser machine uses in Sensing

Compared to other light sources, fiber lasers have many advantages when used as sensing light sources. First of all, fiber lasers have excellent performances such as high utilization, tunability, good stability, compact size, light weight, easy maintenance and good beam quality. Secondly, the fiber laser can be well coupled with the fiber, fully compatible with the existing fiber devices, and can perform all-fiber testing. Now, fiber sensing based on tunable narrow-linewidth fiber lasers is one of the hottest applications in this field. The fiber laser has a narrow spectral linewidth, an ultra-long coherent length, and fast frequency modulation. Applying this narrow linewidth fiber laser to a diffuse sensing system can realize ultra-long interval and ultra-high-precision fiber sensing.


Fiber laser machine uses in therapy

Today, most of the lasers used in clinic are argon ion lasers, carbon dioxide lasers and YAG lasers, but usually they have low beam quality, have very large volumes, require huge water cooling systems, and are very difficult to install and maintain. can be supplemented by fiber lasers. Since water molecules have an absorption peak at 2 μm, using a 2 μm fiber laser as a surgical tool can achieve rapid hemostasis and avoid the damage to human body structures caused by surgery.


Fiber Laser machine uses in Communication

Compared with other type lasers, fiber lasers have nice advantages in heat dissipation, beam quality, volume, layout compactness, and compatibility with existing systems, and are widely used in the field of communications.

The mode-locked fiber laser with rare earth-doped fiber as the gain medium can produce ultra-short optical pulses with high repetition rate and pulse width in the order of picoseconds or femtoseconds, and its lasing wavelength falls within the optimal window of 1.55 μm for fiber communication. In the wavelength band, it is the ideal light source for the future high-speed optical communication system. Now, mode-locked fiber lasers with repetition rates of 10 GHz and 40 GHz have been successfully developed. Once this communication network is rolled out, the demand for this type of laser will be enormous.

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