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Updated: Jul 3, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Nonlinear unbalanced Bessel beams in the collapse of Gaussian beams arrested by nonlinear losses
Miguel A Porras1, Alberto Parola
1Departamento de Física Aplicada, Escuela Tecnica Superior de Ingenieros de Minas, Universidad Politécnica de Madrid, Rios Rosas 21, 28003 Madrid, Spain. miguelangel.porras@upm.es
Abstract:
Collapse of a Gaussian beam in self-focusing Kerr media arrested by nonlinear losses may lead to the spontaneous formation of a quasi-stationary nonlinear unbalanced Bessel beam with finite energy, which can propagate without significant distortion over tens of diffraction lengths, and without peak intensity attenuation while the beam power is drastically diminishing.
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