Chirped soliton solutions of Fokas-Lenells equation with perturbation terms and the effect of spatio-temporal dispersion in the modulational instability analysis

被引：25

作者：

Dieu-donne, Gawarai ^{[1
]}

Hubert, Malwe Boudoue ^{[1
]}

Seadawy, Aly ^{[3
]}

Etienne, Temwa ^{[2
]}

Betchewe, Gambo ^{[1
,2
]}

Doka, Serge Y. ^{[4
]}

机构：

[1] Univ Maroua, Dept Phys, Fac Sci, POB 814, Maroua, Cameroon

[2] Univ Maroua, Higher Teachers Training Coll Maroua, POB 55, Maroua, Cameroon

[3] Taibah Univ, Fac Sci, Medina, Saudi Arabia

[4] Univ Ngaoundere, Dept Phys, Fac Sci, POB 454, Ngaoundere, Cameroon

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2020年 / 135卷 / 02期

关键词：

D O I：

10.1140/epjp/s13360-020-00142-z

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the present work, exact chirped solitons are derived from the Fokas-Lenells equation with the perturbation terms which describes the ultrashort pulse in the optical fiber. The obtained chirps could help for either pulse compression or amplification in optical fiber. We also analyzed the effect of spatio-temporal dispersion in the modulational instability. As result, the modulational instability analysis shows that the gain is increasing when the spatio-temporal dispersion coefficient decreases; besides, the region of MI gain apparition is well determined.

引用

页数：10

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