Unlocking True Flexibility in Laser Processing due to the dynamic beam shaping technology ZWOBBEL® by Robust AO
Modern laser processing is undergoing a major transformation. While power and precision remain critical, flexibility has become the defining factor. This is where fast laser beam switching comes into play.
Why Beam Profiles Matter
Different applications require different energy distributions:
Gaussian beam: high intensity for deep penetration
Donut beam: peripheral energy for melt pool stability
Top-hat beam: uniform distribution for precision processing
As highlighted in the whitepaper, no single beam profile is optimal throughout an entire process
The Limitation of Conventional Systems
Traditional laser systems rely on static beam profiles, resulting in:
- limited process optimization
- reduced flexibility
- compromised quality
Switching between profiles has historically been slow or impractical.
Fast Laser Beam Switching as a Gamechanger
Fast laser beam switching enables profile transitions in under 2 milliseconds—even at power levels up to 40 kW .
This allows:
👉 real-time adaptation of the beam to the process.
Use Case: Welding
Laser welding—especially aluminum—benefits significantly:
- Initiation
Gaussian beam for rapid penetration - Steady state
Donut beam stabilizes melt pool - Closure
Gaussian beam ensures controlled solidification
Results include:
- up to 25% deeper welds
- 45% reduced penetration fluctuation
Key Benefits
Beyond Welding
Easy integration
- improved process stability
- fewer defects
- higher quality output
- greater material flexibility
Fast laser beam switching also enhances:
- Drilling: improved entry quality
- Additive manufacturing: uniform melt tracks
- Micromachining: precise edges
The core advantage remains: dynamic optimization instead of static compromise.
The technology integrates with:
- diffractive optical elements (DOE)
- MPLC systems
- axicons
- refractive beam shapers
This enables upgrades without replacing entire systems.
Conclusion
Fast laser beam switching represents a paradigm shift in laser processing. Real-time beam adaptation unlocks higher productivity, better quality, and entirely new process capabilities.