What is the difference between wonder metal laser cutting machine and others? For example: an electric light bulb of tens of watts can only be used for general lighting. If its energy is concentrated in a 1m diameter ball, a very high optical power density can be obtained, and the steel plate can be penetrated by this energy. However, the light of ordinary light sources is emitted in all directions, and the light energy cannot be highly concentrated. The light emitted from different points on ordinary light sources is messy in different directions and at different times, and it is impossible to converge on one point after passing through the lens.
The laser is very different from others. Because its frequency is very simple, the light emitted from the laser can travel in the same direction in unison. You can use a lens to converge them to a point to highly concentrate the energy and send it into the optical fiber. This is called high coherence. The brightness of a giant pulse ruby laser can reach 1015w/cm2, which is several times higher than the brightness of the sun’s surface.
The volume of the semiconductor laser used in fiber communication is very small. It is similar to the ordinary transistor. The light power it emits is generally not too large, usually only a few milliwatts. If its energy is highly concentrated, it is easy to couple into the fiber. This is of great significance to increase the relay distance of optical fiber communication and improve the quality of communication. Because of the coherence of lasers, the energy of light can be concentrated, and laser cutting machines can be used to cut various metal materials.
