On this page, we explain marking examples and characteristics of fiber laser markers, which are perfect for applications such as black-annealed marking and deep engraving into metal. The differences between fiber laser markers and YVO4 are also explained.
Fiber laser markers have a wavelength of 1090 nm, which is within the standard wavelength range, and are capable of marking a wide range of materials, including metals and resins. Their high power is particular suited for black-annealed marking and deep engraving on metal. On the other hand, fiber laser markers cannot be used to mark transparent objects like glass as the light passes through them.
Mechanism and Characteristics of Fiber Lasers
Fiber lasers are high-output lasers developed from long-distance communication relay amplification technology for optical fibers. The laser beam is efficiently amplified by traveling through the optical fiber, which makes it possible to produce a high-output laser.
Feature: High-power laser engraving
Compared with conventional laser markers, high-output lasers can perform deeper engraving with the same marking time and faster engraving with the same depth. Fiber laser marking is the solution to shorter marking time and deeper engraving needs.
Differences With YVO4 Laser
While fiber laser markers operate in the same standard wavelength range as YVO4 laser markers, there are significant differences in the way the beam is generated as well as their benefits.
While fiber lasers are produced by optical fiber that amplifies the laser beam, YVO4 lasers are solid-state lasers generated using crystals as the amplification medium for the laser beam. The difference between the two is in their peak power and pulse width.*
Fiber lasers are excellent for deep engraving, and high-power marking on metal at low peak and long pulse. On the other hand, YVO4 is suitable for high-contrast, low heat-damage marking at high peak and short pulse.
* Peak power: Maximum value of instantaneous output per pulse of laser beam
Pulse width: Time during which a pulse of laser beam is emitted
|YVO4 laser||Fiber laser|
|SUS engraving||Depth: 1 μm||Depth: 8 μm|
- Hybrid laser marker
KEYENCE offers a product lineup including hybrid laser markers that integrate YVO4 laser and fiber laser technologies.
The laser oscillator emables optimal marking on a variety of materials, from low-damage marking on resin to deep engraving on metals.
Hybrid laser markers are KEYENCE’s exclusive technology born from its continuous development of solid-state and fiber lasers.
Best-in-class output3-Axis Fiber Laser MarkerMD-F Series
- 50 W/30 W high power
- High-powered lasers enable large reductions in processing time, deep engraving on metal, and high-speed processing.
- Scanner control for each application
- The laser scanning is optimized to match the application. This enables reductions in processing time and improved quality.
- Environmentally resistant, fan-less head
- This product has a compact and rugged construction (enclosure rating: IP64) that means it can be used in any installation environment.
Automatic position and focus correction3-Axis Hybrid Laser MarkerMD-X Series
- Built-in vision
- Mark the same location on any part, anywhere.
The MD-X series contains a camera inside the laser marking head which can automatically identify a target’s shape. The laser marker can then adjust for X, Y and theta offsets to ensure the marking position is always correct.
The marking system is even able to distinguish between parts and mark each part accordingly.
- Autofocus anywhere
- Mark in-focus on any part, anywhere.
The MD-X laser marker comes standard-equipped with a built-in distance sensor that enables automatic focal corrections. Eliminate manual height adjustments due to part variations in a few simple steps.
- Data-driven analytics
- Automatic fault protection and monitoring from anywhere.
The new MD-X uses predictive maintenance to eliminate problems before they occur. In the unlikely event of a marking defect, the laser marker features a wide range of diagnostic tools to identify the root cause and deploy countermeasures.