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Open Access item Order parameter description of walk-off effect on pattern selection in degenerate optical parametric oscillators

Authors:Taki, Majid
San Miguel, Maxi
Santagiustina, Marco
Issue Date:2000
Publisher:American Physical Society
Citation:Physical Review E- Statistical, Nonlinear, and Soft Matter Physics 61: 2133-2136 (2000)
Abstract:Degenerate optical parametric oscillators can exhibit both uniformly translating fronts and nonuniformly translating envelope fronts under the walk-off effect. The nonlinear dynamics near threshold is shown to be described by a real convective Swift-Hohenberg equation, which provides the main characteristics of the walk-off effect on pattern selection. The predictions of the selected wave vector and the absolute instability threshold are in very good quantitative agreement with numerical solutions found from the equations describing the optical parametric oscillator.
Identifiers:doi: 10.1103/PhysRevE.61.2133
issn: 1063-651X
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