Automatic laser beam alignment

S. L. Chen, L. Li, P. Modern, W. M. Steen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


It is well known that the pointing stability of a laser beam is decisive in determining the quality and efficiency of laser cutting, welding and drilling. Due to the instability of pointing for a long beam path which is increasingly used in material processing, there is a need for an automatic laser beam alignment system which is designed to accurately position laser beams to the working point of workstations. Such a system would require a device to automatically identify where the beam is. An instrument for doing this is described. The study presented here combines a rotating disk, having one slit, with a high speed optical sensor and a convergent lens to form a sensory unit to detect the laser beam position.

Original languageEnglish
Title of host publicationLIA (Laser Institute of America)
PublisherPubl by Laser Inst of America
Number of pages11
ISBN (Print)0912035439
Publication statusPublished - 1991
EventProceedings of the Laser Materials Processing - ICALEO '90 - Boston, MA, USA
Duration: 1990 Nov 41990 Nov 9

Publication series

NameLIA (Laser Institute of America)


OtherProceedings of the Laser Materials Processing - ICALEO '90
CityBoston, MA, USA

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Automatic laser beam alignment'. Together they form a unique fingerprint.

  • Cite this

    Chen, S. L., Li, L., Modern, P., & Steen, W. M. (1991). Automatic laser beam alignment. In LIA (Laser Institute of America) (pp. 41-51). (LIA (Laser Institute of America); Vol. 71). Publ by Laser Inst of America.