Wittrock, Ulrich
Filtern
Publikationstyp
- Beitrag in einer (wissenschaftlichen) Zeitschrift (1) (entfernen)
Sprache
- Englisch (1) (entfernen)
Schlagworte
- optical components (1) (entfernen)
On-the-fly remote laser processing plays an increasingly important role in modern fabrication techniques. These processes require guiding of the focus of a laser beam along the contours of the workpiece in three dimensions.
State-of-the-art galvanometer scanners already provide highly dynamic and precise transverse x−y beam steering. However, longitudinal focus shifting (“z-shifting”) relying on conventional optics is restricted to a bandwidth of a few hundred Hz. We have developed and manufactured a fast piezo-based z-shifting mirror with diffraction-limited surface fidelity providing a focus shift of 1z> 60 mm with an actuation rate of 2 kHz.