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The operating principle of fiber laser engravers

Pulsed and Continuous Wave (CW) Green Fiber LasersNowadays fiber laser systems for engraving become more and more popular and even replace the old laser technology. Numerous modern industries apply direct laser marking in their operations. The thing is that that fiber lasers offer such an advantage for engraving as their ability to leave a permanent mark on any material. Additionally, such laser systems have resistance to any form of abrasion not involving any contact.
The operating principle of fiber laser engravers is based on the laser beam that is directed to the material and the material changes color depending on the time the two get exposed resulting in a mark. Herewith, the laser beam is originated from light amplification by energy radiation and absorption. The resonator components include glass fibers that can be pumped by diodes to emit a laser beam with a small wavelength, for instance, 1064.
Fiber laser engravers are popular because the engraved details are always precise, herein, they do not create a tear. To be more precise, the accuracy is maintained during the whole process. The fiber laser systems for engraving have a tiny diameter but high intensity. Thus, fiber lasers are perfect for marking such materials as plastics and hard metals.
It should be noted that fiber laser engravers include a laser engine, a control software, and a scan head. Laser systems can be used not only for engraving and marking, their applications also contain material removal, material cutting, and scribing. Moreover, fiber laser systems demonstrate high efficiency when compared to conventional lasers: they provide “speed, flexibility, and reliability that is required to process certification standards, and achieve maximum quality control.”
Different reasons make fiber lasers highly efficient:

  • Compared to most lasers, fiber laser systems for engraving are not sensitive to movements. The thing is that “when most lasers are knocked, their whole laser alignments are thrown off. If the optics get misaligned, getting them to function again is not easy, and it requires a specialist.” Nevertheless, fiber lasers do not have these problems because they do not need for sensitive optics for the operation due to the laser beam emitted from the fiber’s interior side.
  • Fiber lasers also provide high reliability due to the laser beam of high quality. The laser beam that is emitted from the fiber’s inner core is straight and ultra-focused. Also, it is possible to tune the laser beam.
  • The power of fiber laser systems is also high-quality, however, it is easy to cool despite the high power output and intensity. Fiber lasers turn 70%-80% of the power generated resulting in high efficiency.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at