Spatiotemporal solitons in birefringent media near the zero-dispersion point

E. P. Fitrakis*, H. E. Nistazakis, B. A. Malomed, D. J. Frantzeskakis, P. G. Kevrekidis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We present a new species of spatiotemporal solitions (STSs, alias light bullets) that may be formed through the interaction of two waves with different polarizations in a birefringent Kerr medium near the point at which the second-order group-velocity dispersion (GVD) vanishes in the presence of a uniform ew background in one component. The analysis is based on an asymptotic reduction of the two cross-phase, modulation-coupled (2+1)-dimensional nonlinear Schrödinger equations, incorporating the third-order GVD to the Davey-Stewartson (DS) systems of type I or II for the self-defocusing and focusing Kerr nonlinearity, respectively. The STSs are then predicted following the pattern of the dromion solutions of the DS-I system and lump solitons of the DS-II system. Strictly speaking, the solitons are unstable, but they are shown to be stable objects on experimentally relevant scales of the propagation distance.

Original languageEnglish
Pages (from-to)1911-1919
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Issue number9
StatePublished - Sep 2006


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