Extreme solitons in optical fibers

Shalva Amiranashvili
Weierstrass Institute for Applied Analysis and Stochastics
Extreme solitons in optical supercontinuum are usually attributed to inelastic binary collisions of solitons, which favor formation of a single huge champion-soliton. The latter accumulates a great part of the system energy. We argue that there is an alternative possibility: a soliton can be quickly reshaped up to a single-cycle limit, whereas soliton energy does not change much. The reshaping takes place for a strongly asymmetric group-velocity-dispersion profile, the solitons are enhanced due to interactions with the low-amplitude dispersive wave packets.