Convergence criteria and optimization techniques for beam moments

G Gbur, P S Carney
1998 Pure and Applied Optics Journal of the European Optical Society Part A  
We consider the problem of the characterization of beams by moments of the field intensity in the aperture and its moments in the far field. The well known beam propagation factor, M 2 P , is considered. We give convergence criteria for these factors and also discuss a new approach to optimization of the even moments of the far-field intensity.
doi:10.1088/0963-9659/7/5/027 fatcat:pblqo3owibck3fxrinjz2dkfta