Nonlinear Interaction of Transversal Modes in a CO2 Laser
Ricardo Lopez-Ruiz, G. B. Mindlin, C. Perez-Garcia, J. R. Tredicce
Abstract
We show the possibility of achieving experimentally a Takens-Bogdanov bifurcation for the nonlinear interaction of two transverse modes (l = 1) in a CO2 laser. The system has a basic O(2) symmetry which is perturbed by some symmetry-breaking effects that still preserve the Z2 symmetry. The pattern dynamics near this codimension two bifurcation under such symmetries is described. This dynamics changes drastically when the laser properties are modified.
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