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The amazing properties of fiber lasers: Why is it better than other lasers?
In modern technology, fiber laser has gradually become the core technology in the industry with its excellent performance and flexible application. Compared with traditional solid-state lasers or gas lasers, fiber lasers have unparalleled advantages in strength, quality and economic benefits. This article will explore the characteristics of fiber lasers and their applications in various industries, and lead readers to think about its future development potential.
Characteristics of fiber laser
The main advantage of fiber laser is that it uses rare earth element-doped optical fiber as the gain medium. Due to the elasticity of fiber optics, laser light is more easily generated and transmitted, which particularly benefits applications that require precise focus, such as laser cutting and welding of metals and polymers.
The high output power of fiber lasers makes them more efficient and reliable in industrial applications.
The high surface area to volume ratio of optical fiber promotes effective heat dissipation, allowing fiber lasers to support kilowatt-level output power during continuous operation. Because the fiber's waveguide properties reduce thermal distortion, it often produces high-quality, diffraction-limited beams, which is critical for applications requiring high precision.
Design and manufacturing
The laser cavity structure of fiber lasers usually adopts a single design that fuses different optical fibers. Fiber Bragg gratings can replace traditional dielectric mirrors to provide optical feedback. Fiber lasers are typically pumped by semiconductor laser diodes or other fiber lasers. This flexibility allows them to work well in a variety of environments.
Professional optical fiber design not only improves efficiency, but also meets various industrial needs.
In high-power fiber lasers, the use of double-clad fibers is very common, which not only improves pumping efficiency, but also uses high-power pump beams to generate high-brightness signals.
Power expansion technology
With the advancement of technology, fiber lasers have also made major breakthroughs in power expansion. In 2014, a laser system incorporating fiber optics achieved a breakthrough power of 30 kW. When addressing thermal lensing and nonlinear effects such as stimulated Raman scattering, engineers increase luminous efficiency by increasing fiber core diameter and improving fiber materials.
Technological advances in fiber lasers have greatly increased the feasibility of high-power solutions.
In addition, the carefully designed double-cladding structure also greatly reduces the requirements for high brightness of the laser diode, making the propagation of pump light more efficient.
Application scope
Fiber lasers are widely used in metal processing, telecommunications, spectroscopy, medical treatment and guided energy weapons. Their powerful cutting and welding capabilities in manufacturing provide important support for the development and utilization of new materials.
The acceptance of fiber lasers is gradually increasing in a variety of industries, and their application potential is unlimited.
Future Outlook
With the continuous evolution of fiber laser technology, future applications will be more diverse. The advancement of technology is not only about improving power and beam quality, but also about expanding its application areas so that it can better meet industry needs.
With continued research and development, fiber laser is expected to become the core of more innovative technologies. Do you also look forward to seeing what changes and opportunities fiber laser will bring in the future?
