Introduction of optical Newton cradle model for understanding the N-solitons fission process under the action of higher order dispersion

Abstract

A mechanism of creating a Newton's cradle (NC) in the form of a chain of solitons is proposed for understanding fission of higher-order soliton in optical fibers caused by higher-order dispersion. After the transformation of the initial Nsoliton into a chain of fundamental quasi-solitons, the tallest one travels along the chain through elastic collisions with other solitons, and then escapes, while the other solitons remain in a bound state. Multiple releases of solitons take place if N is sufficiently large. The NC effect is robust against inclusion of the Raman and self-steepening terms.

Widely tunable dispersive wave generation and soliton self-frequency shift in a tellurite microstructured optical fiber pumped near the zero dispersion wavelength

“…After the occurrence of the soliton fission, the fundamental soliton passes the whole soliton chain from the left to right, and then escapes. The DW locates at the rightside of the ejecting soliton, which agrees well with the predictions in [27].…”