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Phys. Rev. Lett. 87, 103903 (2001) [4 pages]

Transverse Instability of Vector Solitons and Generation of Dipole Arrays

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Dragomir Neshev1,2, Wieslaw Krolikowski2, Dmitry E. Pelinovsky3, Glen McCarthy2, and Yuri S. Kivshar1
1Nonlinear Physics Group, Research School of Physical Sciences and Engineering, The Institute of Advanced Studies, The Australian National University, Canberra ACT 0200, Australia
2Laser Physics Centre, Research School of Physical Sciences and Engineering, The Institute of Advanced Studies, The Australian National University, Canberra ACT 0200, Australia
3Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada L8S 4K1

Received 18 March 2001; published 20 August 2001

We develop a theory of modulational instability of multiparameter solitary waves and analyze the transverse instability of composite (or vector) optical solitons in a saturable nonlinear medium. We demonstrate theoretically and experimentally that a soliton stripe breaks up into an array of ( 2+1)-dimensional dipole-mode vector solitons, thus confirming the robust nature of those solitons as fundamental composite structures of incoherently coupled fields.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.103903
DOI:
10.1103/PhysRevLett.87.103903
PACS:
42.65.Tg, 05.45.Yv, 42.65.Sf
 
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