Self-similar propagation of optical pulses in fibers with positive quartic dispersion | Zendy

Antoine F. J. Runge | Zendy; Tristram J. Alexander | Zendy; Joseph Newton | Zendy; Pranav A. Alavandi | Zendy; Darren D. Hudson | Zendy; Andrea BlancoRedondo | Zendy; C. Martijn de Sterke | Zendy

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Self-similar propagation of optical pulses in fibers with positive quartic dispersion

Author(s) -

Antoine F. J. Runge,

Tristram J. Alexander,

Joseph Newton,

Pranav A. Alavandi,

Darren D. Hudson,

Andrea BlancoRedondo,

C. Martijn de Sterke

Publication year - 2020

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.393835

Subject(s) - quartic function , physics , algorithm , analytical chemistry (journal) , chemistry , computer science , mathematics , pure mathematics , chromatography

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.

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