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27 August 1999 Invariant laser beams: fundamental properties and their investigation by computer simulation and optical experiment
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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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vladimir S. Pavelyev, Michael Rudolf Duparre, Barbara Luedge, Victor A. Soifer, Richard M. Kowarschik, and Dimitriy L. Golovashkin "Invariant laser beams: fundamental properties and their investigation by computer simulation and optical experiment", Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); https://doi.org/10.1117/12.360046
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