Vector dissipative light bullets in optical laser beam

被引：11

作者：

Djazet, Alain ^{[1
]}

Tabi, Conrad B. ^{[2
]}

Fewo, Serge, I ^{[1
]}

Kofane, Timoleon C. ^{[1
,2
,3
]}

机构：

[1] Univ Yaounde I, Fac Sci, Dept Phys, Lab Mecan, BP 812, Yaounde, Cameroon

[2] Botswana Int Univ Sci & Technol, Dept Phys & Astron, Private Bag 16, Palapye, Botswana

[3] Univ Yaounde I, Ctr Excellence Africain Technol Informat & Commun, Yaounde, Cameroon

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2020年 / 126卷 / 05期

基金：

美国国家科学基金会;

关键词：

GINZBURG-LANDAU EQUATION; LOCALIZED STRUCTURES; SPATIOTEMPORAL CHAOS; PULSE-PROPAGATION; DYNAMICS; SOLITON; SYNCHRONIZATION; DEFECTS; MODEL;

D O I：

10.1007/s00340-020-07422-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamics of light bullets propagating in nonlinear media with linear/nonlinear, gain/loss and coupling described by the (2+1)-dimensional vectorial cubic-quintic complex Ginzburg-Landau (CGL) equations is considered. The evolution and the stability of the vector dissipative optical light bullets, generated from an asymmetric input with respect to two transverse coordinates x and y, are studied. We use the variational method to find a set of differential equations characterizing the variation of the light bullet parameters in the laser cavity. This approach allows us to analyze the influence of various physical parameters on the dynamics of the propagating beam and its relevant parameters. Then, we solve the original coupled (2+1)D cubic-quintic CGL equation using the split-step Fourier method. Numerical results and analytical predictions are confronted, and a good agreement between the two approaches is obtained.

引用

页数：10

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