The laser beam intensity in a given output plane depends on the beamwidth measurement. To satisfy the application requirements, the beamwidth can be suitably modified either by using external optics or by varying the resonator parameters. The latter method is most appropriate for solid-state lasers. In this paper, a fuzzy controller to modify and maintain a desired beamwidth for stable resonators is discussed. Simulation results indicate that a fuzzy logic based controller can be used to achieve a desired output beamwidth within the available range, and maintain the beamwidth at a specified value within tolerable limits.

Date Published: 5 July 1995
PDF: 11 pages
Proc. SPIE 2484, Signal Processing, Sensor Fusion, and Target Recognition IV, (5 July 1995); doi: 10.1117/12.213015

Published in SPIE Proceedings Vol. 2484:
Signal Processing, Sensor Fusion, and Target Recognition IV
Ivan Kadar; Vibeke Libby, Editor(s)