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HomeInformación de la industriaPrinciple development and application of fiber laser

Principle development and application of fiber laser


green laserLaser technology is widely used in high-end manufacturing, information and communication, biological and medical health industries, military industry, national defense security and other fields. Major developed countries in the world have taken the development of laser technology as their priority areas and given strong support. High technology industry in recent years, the industry beyond the traditional industry, laser processing technology and equipment as a means of modern high-tech processing, more and more traditional industries rely on laser processing technology, improve product quality or solve the problem of traditional processing methods and technology can't solve, high-tech, high-growth laser industry development is rapid, the application of laser technology and technical transformation to some traditional industry transformation successfully. Industrial laser after the traditional gas, solid laser, fiber laser, semiconductor laser, disc laser, ultra-short pulse laser and other new laser rapid development,  in the face of fiber laser principle, characteristics, technical development and application are introduced.

Fiber laser is a hot topic in laser field in recent years. Compared with traditional solid and gas lasers, optical fiber lasers have many unique advantages, such as good beam quality, small size, light weight, maintenance-free, wind cooling, easy to operate, low operating costs, long-term use in the industrial environment; And high precision processing, fast speed, long life, energy saving, especially can be intelligent, automatic, flexible.

Blue Laser

Europe is strengthening the research and development of fiber laser, by the German fraunhofer institute of materials and beam technology "leading fiber laser technology" major project, the investment of 17 million euros to develop new fiber laser, and make its power over the kilowatt level.

Fiber laser has many advantages in the field of industrial processing. Compared with conventional CO2 lasers and solid-state lasers, fiber lasers are smaller, more efficient, less costly, have the advantage of being earthquake-resistant and dust free, and their beam quality is far from comparable. The photoelectric conversion efficiency of the fiber laser can reach more than 30%, and the heat generated when working is less, and even the use of air cooling without water cooling is enough to meet the cooling requirements. In terms of the lifetime of the laser light source, the total cost of using a fiber laser is about 1/2 that of a CO2 laser, and 1/3 that of a YAG or disk laser. Although the initial investment of the fiber laser is greater than the CO2 laser with the same power, the output power of the fiber laser only needs to reach 50% of the CO2 laser to achieve the same processing speed as the CO2 laser. In addition, the fiber laser is pumped by a highly reliable laser diode, and its resonant cavity exists in the fiber, almost no maintenance costs and no need to arrange optical resonant cavity mirrors.

With the rapid development of fiber laser, its application range is getting higher and higher. At present, the main market application is in the field of industrial material processing. The industrial application of fiber laser has developed from low-power marking and engraving to high-power cutting and welding of metals and ceramics. In automobile and shipbuilding industries, high-power fiber lasers with compact structure and convenient operation have great market potential.

Aviation is an industry that has benefited greatly from fiber lasers. In today's airline industry, a turbine engine can have millions of holes, which are designed to help dissipate heat during operation. Holes vary in thickness, Angle, diameter and shape. For drilling applications in aviation, the new fiber laser is a faster, more flexible, more stable, and more cost-effective option.

Another significant advantage of fiber lasers is their ease of integration with existing machinery or robotic systems. Optical fiber lasers transmit energy through fiber optic cables, making it easy to upgrade existing systems or install new ones. Industrial robots connected to fiber lasers can be programmed to achieve precise control so that a new drilling system can be built with less capital investment and a high degree of flexibility. In addition, the combination of the robot and the six-axis system can also meet the precision requirements of the aerospace device industry drilling. To this day, a number of large enterprises are still in-depth research, including the development of multi-axis machine and robot system, upgrade of existing production lines and so on.

In recent years, with the rapid development of optical communication network and related technologies, fiber laser technology is advancing to the breadth and depth. The progress of related technologies, especially the new optical fiber devices based on fiber grating, filter and fiber technology, will provide new ideas and methods for the design of fiber lasers. Although most types of fiber lasers are still in the laboratory development stage, they have fully demonstrated their advantages in the laboratory.

In addition, because fiber laser has obvious advantages in efficiency, beam mass, volume, weight, robustness and cooling, through a large number of field tests, it will become one of the main light sources of tactical laser weapons.

Linda Yang

Ms. Linda Yang


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