Unusual self-spreading or self-compression of the cubic-quintic NLSE solitons owing to amplification or absorption

Autor: A. Ramirez, T.L. Belyaeva, Vladimir N Serkin, M. Aguero, O. Pavon-Torres
Rok vydání: 2019
Předmět:
Zdroj: Optik. 184:446-456
ISSN: 0030-4026
DOI: 10.1016/j.ijleo.2019.04.103
Popis: It is usually believed that solitons always expand due to absorption, and vice versa, they can be significantly compressed due to amplification. Contrary to this usual opinion, we demonstrate that the higher-order nonlinearity opens the possibility to observe unusual and contrasting effects, namely, the soliton self-spreading effect arising due to the soliton amplification and vise versa, the soliton self-compression effect appearing in the absorption regime of the soliton propagation. The detailed contrasting scenarios of the soliton self-spreading or self-compression owing to amplification or absorption are considered in the framework of the simplest cubic-quintic nonlinear Schrodinger equation model.
Databáze: OpenAIRE