Abstract
We demonstrate experimentally the formation of polychromatic single- and double-charge optical vortex solitons by employing a lithium niobate crystal as a nonlinear medium with defocusing nonlinearity. We study the wavelength dependence of the vortex core localization and observe self-trapping of polychromatic vortices with a bandwidth spanning over more than 70 nm for single-charge and 180 nm for double-charge vortex solitons.
| Original language | English |
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| Pages (from-to) | 1851-1853 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 33 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 15 Aug 2008 |