Semiconductor fiber laser is not common in daily life, because of its high price, many manufacturers do not use this product. So do you know how the semiconductor fiber laser works? What are its main applications? Let's take a look at it together.

Semiconductor fiber laser doesn't simply rely on a chip to emit light, but let the semiconductor laser emit "seed light" first, and then "amplify" this beam of light into high-power and high-brightness laser through rare earth elements in the fiber (such as ytterbium-doped fiber).

Here, the optical fiber is equivalent to a strip-shaped "intensifier", because when the light propagates inside the optical fiber, the energy will be absorbed by those rare earth ions and then released, and the layers will overlap, just like the volume that is constantly superimposed. The final beam of light has a very high brightness, a small divergence angle and a particularly concentrated energy density.

Fiber laser has become the leading role in the industrial field in recent years. The most typical is laser cutting and welding. Whether it is automobile parts, stainless steel cabinets or mobile phone metal frames, most manufacturers are using fiber laser equipment. Because of its high beam quality, low maintenance cost and long service life, it is much easier than the previous Co laser.

Another popular application is laser marking, which is the structure used in fiber laser marking machine. It can carve very fine words and patterns on metal and plastic, which is especially suitable for making two-dimensional codes, part codes or LOGO.

Semiconductor fiber laser is a device that "amplifies" the energy of semiconductor light source by optical fiber, thus obtaining high power and high quality laser. And its application range, from industry to medical treatment, from communication to detection, has penetrated into almost every corner of modern manufacturing.