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Proceedings Paper

Intra-cavity decomposition of a dual-directional laser beam
Author(s): Darryl Naidoo; Andrew Forbes; Kamel Aït-Ameur; Michael Fromager
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Paper Abstract

A method of decomposing a dual-directional laser beam into a forward propagating field and a backward propagating field for an apertured plano-concave cavity is presented. An intra-cavity aperture is a simple method of laser beam shaping as higher-order transverse modes are discriminated. Two fundamental resonator theories, namely, Fox-Li and Laguerre-Gaussian decomposition are used in the determination of the respective beam profiles at a specific plane. A preliminary set-up is characterized for Gaussian propagation in an attempt to verify that the cavity is viable. A comparison of experimental data with the theories is presented.

Paper Details

Date Published: 19 February 2011
PDF: 8 pages
Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 79131F (19 February 2011); doi: 10.1117/12.876855
Show Author Affiliations
Darryl Naidoo, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Andrew Forbes, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Kamel Aït-Ameur, Ecole Nationale Supérieure d'Ingenieurs de Caen et Ctr. de Recherche (France)
Michael Fromager, Ecole Nationale Supérieure d'Ingenieurs de Caen et Ctr. de Recherche (France)


Published in SPIE Proceedings Vol. 7913:
Laser Resonators and Beam Control XIII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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