EXPERIMENTAL INVESTIGATION ON APERTURE-DIFFRACTED LASER-BEAM CHARACTERIZATION

Authors
PORRAS MA
Citation
Ma. Porras, EXPERIMENTAL INVESTIGATION ON APERTURE-DIFFRACTED LASER-BEAM CHARACTERIZATION, Optics communications, 109(1-2), 1994, pp. 5-9
Citations number
14
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
109
Issue
1-2
Year of publication
1994
Pages
5 - 9
Database
ISI
SICI code
0030-4018(1994)109:1-2<5:EIOALC>2.0.ZU;2-E
Abstract
Parametric characterization of aperture-diffracted laser beams is inve stigated experimentally. The width of a diffracted beam is measured as the mean square deviation of the intensity profile integrated over fi nite area. A practical criterion for the choice of this area is given. With this criterion, the change of the width as the diffracted beam p ropagates is found hyperbolic, and the product waist width times diver gence angle invariant under ABCD transformations.