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Introduction of 9 advantages of fiber laser

by:Leadtech Coding     2022-01-24

The core component of the fiber laser marking machine is the fiber laser. Compared with the traditional solid-state laser, the fiber laser is small in size, long in life, and easy to system integration. It can be used in harsh conditions of high temperature, high pressure, high vibration and high impact. In normal operation, its output spectrum has higher tunability and selectivity.

1. The gain medium has a large surface area/volume ratio

Fiber lasers use fiber as the gain medium, which has a large The surface area/volume ratio makes it have very good heat dissipation performance. Therefore, even for very high-power fiber lasers, the gain medium will not be thermally damaged. Generally, no special heat dissipation measures are required for the gain medium, while other types of lasers , the heat dissipation of the gain medium is a key consideration, so this feature is unique to fiber lasers.

2. Excellent dual-waveguide confinement mechanism

High-power fiber lasers use double-clad active fibers. The double-clad fiber is a double-waveguide structure. The high-power multi-mode pump light is limited to transmit in the larger inner cladding, which provides conditions for the use of high-power and cheap multi-mode pump light. The signal laser has a large diameter. It is generated and transmitted in a small core with a circularly symmetric waveguide structure. Under the limitation of the small core diameter fiber core waveguide, the signal laser can obtain ideal beam quality and a very small light spot. This is the unique attraction of fiber lasers. The important characteristics of high-power lasers, there is no laser that can surpass it. Excellent beam quality and extremely small light spot diameter are very important in laser applications, which can make the optical system of subsequent application equipment simpler, smaller in size, longer in working distance, smaller in laser focusing spot, and more efficient in work. high, the processing depth is deeper, the processing quality is better, etc.

3. Inherent fully enclosed flexible optical path

The optical path of the fiber laser is all composed of optical fibers and optical fiber components. The optical fiber components are connected by optical fiber fusion technology, and the entire optical path is completely enclosed in the optical fiber waveguide. Once this natural fully enclosed optical path is formed, it can become a self-contained system without additional isolation measures to achieve isolation from the external environment. Because the optical fiber is small and has good flexibility, the optical path can be coiled and traveled along small pipes. Therefore, fiber lasers can work in relatively harsh environments, and the output light can pass through narrow gaps or be transmitted along small pipes for long distances. . These features have great advantages in industrial applications. The laser can not only adapt to the harsh working environment, but also can keep the laser far away from the light output point. Processing points share a single laser, which can make the design of laser processing equipment have higher flexibility and so on.

4. The optical path is maintenance-free

The optical path of the fiber laser is all composed of optical fibers and optical fiber components. The optical fiber fusion technology is used to connect the components. Therefore, once the optical path is formed, it will form a whole. It has been proved that the connection structure and connection parameters formed in this way will remain stable for a long time. If the optical fiber and the optical fiber components themselves can have long-term stability, the entire optical path Will be stable for a long time without maintenance. It should be pointed out that this maintenance-free feature is not impossible to maintain and repair. If necessary, the maintenance and repair of the entire optical path can also be carried out. Therefore, it is different from the frequent maintenance and repair of gas and solid-state lasers. Compared with the maintenance-free characteristics of the optical path of the fiber laser, the maintainability and repairability of the fiber laser have obvious advantages compared with the non-repairability of the semiconductor laser.

5. Long lifespan

A single wide light-emitting region semiconductor pump laser is used as the pump source of the fiber laser. Lasers have the characteristics of long life, so it is technically feasible to manufacture long-life fiber lasers with hundreds of thousands of hours.

6. Small size and light weight

Since the optical path can be coiled, the optical path occupies less space. In the case of the wide light-emitting region semiconductor pump laser as the pump source, the pump laser can be installed dispersedly and has good heat dissipation characteristics. When the installation density is not high, air cooling can be used. In some cases, only a small amount of water can be passed to meet the heat dissipation requirements. Therefore, the volume of the fiber laser is smaller and lighter than the gas and solid-state laser systems of the same output power.

7. Water and electricity saving and cost saving

Fiber lasers have excellent thermal performance, high photoelectric efficiency, and save energy. Water and electricity saving, especially important is that it can be used for a long time without maintenance, which can save a lot of maintenance costs and practices, and improve work efficiency.

8. Continued reduction in cost

The optical path of the fiber laser is all composed of optical fibers and optical fiber components. After the technology, product and market mature, the cost can be greatly reduced. In addition to the optical path, the semiconductor pumped laser is the main part of the cost of fiber lasers. From the development history and experience of optical communication, with the development of technology and the continuous expansion of market capacity, the cost of semiconductor pumped lasers has been greatly reduced. will become an inevitable trend.

(This article is edited by the editor, please be sure to indicate the source:)

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