Automatic compensation of laser beam focusing parameters for flying optics

✍ Scribed by Da-ping Wan; Xi-chang Liang; Fan-ming Meng; De-jin Hu; Yu-ming Wang; Bing-kui Chen; Yi-min Shao

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 415 KB
• Volume: 41
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/j.optlastec.2008.07.007

✦ Synopsis

Flying optics technologies are used for a range of applications such as a large workpiece processing and laser texturing. It is essential to compensate the variations of laser beam focus parameters while the focus head is moving. A flying optics automatic compensation approach is proposed to achieve invariable laser focal size, focus depth and focus position through computer controlled objective lens and focus lens position. A simple mechanical control method is also presented for the realization of constant beam parameters for flying optics. Numerical simulation is illustrated for a CO 2 laser texturing application. The flying optics parameters compensation is simple and easy to control.