Discrete X-wave formation in nonlinear eaveguide arrays

Yoav Lahini, Eugene Frumker, Yaron Silberberg, Sotiris Droulias, Kyriakos Hizanidis, Roberto Morandotti, Demetrios N. Christodoulides

Research output: Contribution to journalArticlepeer-review


We present experimental evidence for the spontaneous formation of discrete X waves in AlGaAs waveguide arrays. This new family of optical waves has been excited, for the first time, by using the interplay between discrete diffraction and normal temporal dispersion, in the presence of Kerr nonlinearity. Our experimental results are in good agreement with theoretical predictions.

Original languageEnglish
Article number023901
JournalPhysical Review Letters
Issue number2
StatePublished - 2007
Externally publishedYes


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