Strong spatiotemporal localization in a silica nonlinear waveguide array.

Phys Rev Lett 2003 Nov 24;91(22):223901. Epub 2003 Nov 24.

School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 69978 Tel Aviv, Israel.

We investigate the propagation of short, intense laser pulses in arrays of coupled silica waveguides, in the anomalous dispersion regime. The nonlinearity induces trapping of the pulse in a single waveguide, over a wide range of input parameters. A sharp transition is observed for single waveguide excitation, from strong diffraction at low powers to strong localization at high powers.

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http://dx.doi.org/10.1103/PhysRevLett.91.223901DOI Listing
November 2003
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