Adaptive optics, although originally developed for correcting aberrations in astronomical telescopes, also offer the capability to rapidly alter the intensity profile of a laser beam. Such a flexible beam shaping tool is highly attractive for many laser-based manufacturing techniques, allowing dynamic changes of the intensity profile in and around focus, both in-process and to switch between optimised beam shapes for different processes using the same laser. Here we focus on the application of a three different types of adaptive optic to nanosecond pulsed laser machining applications. Focal beam shaping results using (i) a piezoelectric deformable mirror; (ii) a bimorph mirror and (iii) a liquid crystal spatial light modulator are presented and comparisons made. Initial results obtained by applying these adaptive optics to laser micromachining applications using a nanosecond pulsed laser are shown.
|Title of host publication||4th Pacific International Conference on Applications of Lasers and Optics, PICALO 2010|
|Publication status||Published - 2010|
|Event||4th Pacific International Conference on Applications of Lasers and Optics - Wuhan, China|
Duration: 23 Mar 2010 → 25 Mar 2010
|Conference||4th Pacific International Conference on Applications of Lasers and Optics|
|Abbreviated title||PICALO 2010|
|Period||23/03/10 → 25/03/10|