Multi-frequency spatial solitons in Kerr media

We investigate an expanded class of self-guided beams (or spatial solitons), which consist of two or more different optical frequencies, in Kerr media. We show both analytically and numerically that when the nonlinearity is focussing, these solitons are all very stable and may be excited by end-fire...

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Bibliographic Details
Published inOptics communications Vol. 113; no. 1; pp. 292 - 304
Main Authors Tran, H.T., Sammut, R.A., Samir, W.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.12.1994
Elsevier Science
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optical solitons; nonlinear guided waves
Optics
Physics
Theoretical study
Numerical simulation
Wave propagation
Nonlinear optics
Solitons
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Summary:We investigate an expanded class of self-guided beams (or spatial solitons), which consist of two or more different optical frequencies, in Kerr media. We show both analytically and numerically that when the nonlinearity is focussing, these solitons are all very stable and may be excited by end-fire launching, while in defocussing media, they are all unstable and break into filaments on propagation. We also show that the variational method with simple trial functions, which is quite useful in describing single-frequency self-guided beams, does not give a satisfactory description of the interaction between two or more self-guided beams at different frequencies.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(94)90616-5