MEASUREMENT OF BEAM QUALITY DEGRADATION DUE TO SPHERICAL-ABERRATION IN A SIMPLE LENS

Citation
Ja. Ruff et Ae. Siegman, MEASUREMENT OF BEAM QUALITY DEGRADATION DUE TO SPHERICAL-ABERRATION IN A SIMPLE LENS, Optical and quantum electronics, 26(6), 1994, pp. 629-632
Citations number
8
Categorie Soggetti
Optics,"Engineering, Eletrical & Electronic
ISSN journal
03068919
Volume
26
Issue
6
Year of publication
1994
Pages
629 - 632
Database
ISI
SICI code
0306-8919(1994)26:6<629:MOBQDD>2.0.ZU;2-3
Abstract
We have measured the effect on laser beam quality factor M2 of spheric al aberration in a simple planoconvex lens. Theory predicts that the l aser beam quality should remain essentially unchanged until the incide nt beam width w exceeds a critical width w(q) above which the beam qua lity will degrade rapidly, with the M2 value increasing as (w/w(q))4. We find good agreement between this theory and our experimental data.