Astigmatic Gaussian beams produced by axially asymmetric laser cavities
Astigmatic Gaussian beams produced by axially asymmetric laser cavities
Gaussian beams generated within astigmatic resonators are themselves astigmatic, having wavefront curvatures and spot sizes that are different when measured in two orthogonal directions. Expressions are derived for the confocal parameters, spot sizes, waist positions, and stability conditions of beams formed within spherical mirror resonators that contain one or more inclined plates (or Brewster-ended laser rods). An expression is also derived for the resonant frequencies of the TEM(mn) mode in such a resonator. It is shown that the frequency degeneracy between modes of the same m + n is lifted and the frequency splittings are calculated. The astigmatism produced by prisms used for dispersion is also considered and precautions are described for avoiding serious astigmatism in resonators containing such prisms.
483-488
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
1969
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Hanna, D.C.
(1969)
Astigmatic Gaussian beams produced by axially asymmetric laser cavities.
IEEE Journal of Quantum Electronics, 5 (10), .
(doi:10.1109/JQE.1969.1075673).
Abstract
Gaussian beams generated within astigmatic resonators are themselves astigmatic, having wavefront curvatures and spot sizes that are different when measured in two orthogonal directions. Expressions are derived for the confocal parameters, spot sizes, waist positions, and stability conditions of beams formed within spherical mirror resonators that contain one or more inclined plates (or Brewster-ended laser rods). An expression is also derived for the resonant frequencies of the TEM(mn) mode in such a resonator. It is shown that the frequency degeneracy between modes of the same m + n is lifted and the frequency splittings are calculated. The astigmatism produced by prisms used for dispersion is also considered and precautions are described for avoiding serious astigmatism in resonators containing such prisms.
More information
Published date: 1969
Identifiers
Local EPrints ID: 78836
URI: http://eprints.soton.ac.uk/id/eprint/78836
ISSN: 0018-9197
PURE UUID: 6025aa83-d462-482a-a5e4-e2307647a052
Catalogue record
Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:23
Export record
Altmetrics
Contributors
Author:
D.C. Hanna
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics