Coupled solitons in rare-earth doped two-mode fiber

被引：4

作者：

Dey, T. N. ^{[1
]}

Gupta, S. Dutta ^{[2
]}

Agarwal, G. S. ^{[3
]}

机构：

[1] Indian Inst Technol, Dept Phys, Gauhati 781039, India

[2] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

[3] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 22期

关键词：

D O I：

10.1364/OE.16.017441

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present first ever analytical solutions for shape-preserving pulses in a Kerr nonlinear two-mode fiber doped with 3-level. atoms. The two modes are near-resonant with the two transitions of the atomic system. We show the existence of quasi-stable coupled bright-dark pairs if the group velocity dispersion has opposite signs at the two mode frequencies. We demonstrate the remarkable possibility allowed by the fiber dispersion for the existence of a new class of solutions for unequal coupling constants for the two modes. We present the conditions for existence and the analytical form of these solutions in presence of atomic detuning. We confirm numerically the analytical solutions for the spatio-temporal evolution of coupled solitary waves. (C) 2008 Optical Society of America

引用

页码：17441 / 17450

页数：10

共 21 条

[1]

Agarwal G.P., 1995, NONLINEAR FIBER OPTI

[2] Coherent interaction effects in pulses propagating through a doped nonlinear dispersive medium [J].