27 April 2016 Dissipative parametric modulation instability and pattern formation in nonlinear optical systems
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We present the essential features of the dissipative parametric instability, in the universal complex Ginzburg- Landau equation. Dissipative parametric instability is excited through a parametric modulation of frequency dependent losses in a zig-zag fashion in the spectral domain. Such damping is introduced respectively for spectral components in the +ΔF and in the -ΔF region in alternating fashion, where F can represent wavenumber or temporal frequency depending on the applications. Such a spectral modulation can destabilize the homogeneous stationary solution of the system leading to growth of spectral sidebands and to the consequent pattern formation: both stable and unstable patterns in one- and in two-dimensional systems can be excited. The dissipative parametric instability provides an useful and interesting tool for the control of pattern formation in nonlinear optical systems with potentially interesting applications in technological applications, like the design of mode- locked lasers emitting pulse trains with tunable repetition rate; but it could also find realizations in nanophotonics circuits or in dissipative polaritonic Bose-Einstein condensates.
Conference Presentation
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A. M. Perego, A. M. Perego, N. Tarasov, N. Tarasov, D. V. Churkin, D. V. Churkin, S. K. Turitsyn, S. K. Turitsyn, K. Staliunas, K. Staliunas, "Dissipative parametric modulation instability and pattern formation in nonlinear optical systems", Proc. SPIE 9894, Nonlinear Optics and its Applications IV, 98940A (27 April 2016); doi: 10.1117/12.2225595; https://doi.org/10.1117/12.2225595


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