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Proceedings Paper

Invariant laser beams: fundamental properties and their investigation by computer simulation and optical experiment
Author(s): Vladimir S. Pavelyev; Michael Rudolf Duparre; Barbara Luedge; Victor A. Soifer; Richard M. Kowarschik; Dimitriy L. Golovashkin
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Paper Abstract

Laser light modes are beams in whose cross-section the complex amplitude is described by eigenfunctions of the operator of light propagation in the waveguide medium. The fundamental properties of modes are their orthogonality and their ability to retain their structure during propagation for example in a lens-like medium, in free space or a Fourier stage. Novel Diffractive Optical Elements (DOEs) of MODAN-type open up new promising potentialities of solving the tasks of generation, transformation, superposition and subsequent separation again of different laser modes. Now we present new results obtained by synthesis and investigation of beams consisting of more than one two-dimensional Gaussian laser modes with the same value of propagation constant formed by DOEs. The exploitation of these phenomena could enhance the fiber optical system transfer capacity without pulse enlargement.

Paper Details

Date Published: 27 August 1999
PDF: 11 pages
Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); doi: 10.1117/12.360046
Show Author Affiliations
Vladimir S. Pavelyev, Image Processing Systems Institute (Russia)
Michael Rudolf Duparre, Friedrich-Schiller-Univ. Jena (Germany)
Barbara Luedge, Friedrich-Schiller-Univ. Jena (Germany)
Victor A. Soifer, Image Processing Systems Institute (Russia)
Richard M. Kowarschik, Friedrich-Schiller-Univ. Jena (Germany)
Dimitriy L. Golovashkin, Image Processing Systems Institute (Russia)

Published in SPIE Proceedings Vol. 3737:
Design and Engineering of Optical Systems II
Fritz Merkle, Editor(s)

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