Spiral intensity patterns in the internally pumped optical parametric oscillator |
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| Authors: | Lodahl Bache Saffman |
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| Affiliation: | Optics and Fluid Dynamics Department, Riso National Laboratory, Postbox 49, DK-4000 Roskilde, Denmark. |
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| Abstract: | We describe a nonlinear optical system that supports spiral pattern solutions in the field intensity. This new spatial structure is found to bifurcate above a secondary instability in the internally pumped optical parametric oscillator. The analytical predictions of threshold and spatial scale for the instability are supplemented by detailed numerical investigations of the formation of spiral patterns. |
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