| Autor: |
Runge AFJ, Alexander TJ, Newton J, Alavandi PA, Hudson DD, Blanco-Redondo A, de Sterke CM |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2020 Jul 01; Vol. 45 (13), pp. 3365-3368. |
| DOI: |
10.1364/OL.393835 |
| Abstrakt: |
We study the propagation of ultrashort pulses in optical fiber with gain and positive (or normal) quartic dispersion by self-similarity analysis of the modified nonlinear Schrödinger equation. We find an exact asymptotic solution, corresponding to a triangle-like T 4/3 intensity profile, with a T 1/3 chirp, which is confirmed by numerical simulations. This solution follows different amplitude and width scaling compared to the conventional case with quadratic dispersion. We also suggest, and numerically investigate, a fiber laser consisting of components with positive quartic dispersion that emits quartic self-similar pulses. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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