Publications by the Laboratory of Theoretical Physics

Theoretical analysis of self-frequency shift near zero-dispersion points: Soliton spectral  tunneling, E. N. Tsoy and C. M. de Sterke, Phys. Rev. A 76, N.4, 043804 (2007).   [PDF-file  (642 kB)] Abstract: Soliton dynamics under the action of higher-order dispersion and the Raman effect is analyzed. Though we consider a wide variety of parameters, a particularly interesting phenomenon occurs when the presence of cubic and quartic dispersion results in two regions of anomalous group velocity dispersion GVD separated by a region of normal dispersion. In this case a sharp switching of the soliton frequency from one anomalous GVD region to the other may exist. During such a transformation, the center of the soliton spectrum passes through the normal GVD region. We show that this switching occurs due to the phase matching between the soliton and the resonance frequency in the two anomalous GVD regions. The papers have Copyright © by the corresponding publishers. The papers may be downloaded for personal use only. Any other use requires prior permission of the author and the publisher.