LOW POWER LASER BEAM PROFILE ANALYSIS BY DIGITAL PHOTOGRAPHIC TECHNIQUE F. SENDRA, J.M. PASTOR, E. FERNÁNDEZ VICIOSO, A.J. GARCÍA de LINARES, A. DÍEZ de los RÍOS and M. MARTÍNEZ MORILLO J. Phys. IV France, 01 C7 (1991) C7-741-C7-744 DOI: 10.1051/jp4:19917199