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Proceedings Paper

Matrix representation of multimode beam transformation
Author(s): Javier Alda; Miguel A. Porras; Eusebio Bernabeu
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Paper Abstract

The transformation of laser beams passing through optical systems is analyzed using a TEM modal decomposition. The laser beam is decomposed and the optical system is described by a matrix that relates the modal composition of the input and output beams. The hard aperture and the parabolic and Gaussian soft apertures are given a typical examples. The matrices that characterize these apertures allow analysis of the losses of laser resonators, including finite and/or variable reflectivity mirrors. The modal decomposition is used for defining modified ABCD matrices that include any kind of apertures.

Paper Details

Date Published: 1 December 1991
PDF: 12 pages
Proc. SPIE 1527, Current Developments in Optical Design and Optical Engineering, (1 December 1991); doi: 10.1117/12.48655
Show Author Affiliations
Javier Alda, Univ. Complutense de Madrid (Spain)
Miguel A. Porras, Univ. Complutense de Madrid (Spain)
Eusebio Bernabeu, Univ. Complutense de Madrid (Spain)


Published in SPIE Proceedings Vol. 1527:
Current Developments in Optical Design and Optical Engineering
Robert E. Fischer; Warren J. Smith, Editor(s)

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