![]() You have to choose a laser depending on the specific application you intend to use. One significant advantage of using fiber lasers is their long lifetime and lack of maintenance. With the rise of optical fibers, the need for mirrors and beam paths for alignment has also been eliminated in a fiber laser.įinally, the laser beam is shaped at the cutting head using focus lenses and is projected on the work materials. The generated laser beam is then amplified and fed to the cutting head using a flexible optical fiber. ![]() In fiber lasers, the optical fiber is pumped with laser light at the source using high-power laser diodes stimulating the active medium. It can mark, etch, and engrave on metals at an incredible speed.Ī special type of fiber laser known as MOPA fiber laser, provides greater control over pulse width and frequency parameters to produce color laser engravings on metals.Īt the heart of a fiber laser is the laser source and they do not have any gaseous medium in it like in a CO 2 laser. Galvo heads are typically used in portable laser engravers.Įngraving applications are where a fiber laser shines. With the addition of a galvo head, they can also work at a very high speed. In such cases, a CO 2 laser is the best option.īecause of fiber lasers' small focal point, you can engrave with great detail. One thing to note is that while using a fiber laser, you will be somewhat limited in the work-bed size and the range of materials you can cut.įiber lasers have a small focal point, so using them to cut thick materials will be impractical. What it means is, when working with materials like metals that reflect laser beams, they will absorb fiber laser light at a much higher rate than laser light generated by CO 2 lasers.Įven though fiber lasers are solid-state lasers, fiber lasers are different from diode lasers and there is a significant difference in their capabilities. ![]() Unlike CO 2 lasers, fiber lasers consume much less energy and operate at a shorter wavelength ranging between 780 nm and 2200 nm, giving a much higher absorption rate. The major difference between a fiber laser and a CO 2 laser lies in their ability to laser cut sheet metal. Fiber lasers are solid-state lasers used widely in laser marking and engraving machines.
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