Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Laser Beam Control and Optics Diagnostics within the Beam Guiding System of a CO2 High Power Laser System

Datum: 11.12.1992



  • Prof. Dr.-Ing. Dr.-Ing. E.h. mult. Dr.h.c. M. Geiger
  • Prof. Dr. rer.nat J. Christiansen

Within the framework of this research new sensor and control units were developed for the closed-loop control of the laser beam and the optical component quality. The sensor concepts aim at an application close to the process as well as an on-line capability. In particular, the laser beam is sampled at its rim with a thermo-couple sensor measuring the beam position and radius. These two beam parameters are controlled by dynamical optical elements. The optical diagnostic system is based on a geometrical-optical test principle and supplies a measure for the thermal load of the optics.