Influence of four-wave mixing and walk-off on the self-focusing of coupled waves |
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| Abstract | Four-wave mixing and walk-off between two optical beams are investigated for focusing Kerr media. It is shown that four-wave mixing reinforces the self-focusing of mutually trapped waves by lowering their power threshold for collapse, only when their phase mismatch is small. On the contrary, walk-off inhibits the collapse by detrapping the beams, whose partial centroids experience nonlinear oscillations. |
| Type | Journal paper [With referee] |
| Journal | Physical Review Letters |
| Year | 2000 Month April Vol. 84 No. 15 pp. 3302-3305 |
| Publisher | The American Physical Society |
| BibTeX data | [bibtex] |
| IMM Group(s) | Mathematical Physics |