Formation and propagation of coupled ultraslow optical soliton pairs in a cold three-state double- system

Published

May 17, 2006

Author(s)

Lu Deng, M. G. Payne, Guoxiang Huang, kaijun Jiang

Abstract

We investigate the simultaneous formation and propagation of coupled ultraslow optical soliton pairs in a cold, lifetime-broadened three-state double- atomic system. Starting from the equations of motion of atomic response and two-mode probe-control electromagnetic fields, we derive coupled nonlinear Schrödinger equations that govern the nonlinear evolution of the envelopes of the probe fields in this four-wave mixing scheme by means of the standard method of multiple scales. We demonstrate that for weak probe fields and with suitable operation conditions, a pair of coupled optical solitons moving with remarkably slow propagating velocity can be established in such a highly resonant atomic medium. The key elements to such a shape preserving, well matched yet interacting soliton pair is the balance between dispersion effect and self- and cross-phase modulation effects of the system.

Citation

Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)

Volume

73

Issue

5

Pub Type

Journals

Download Paper

https://doi.org/10.1103/PhysRevE.73.056606

Keywords

cold atoms, optical solitons, wave propagation

Citation

Deng, L. , , M. , Huang, G. and Jiang, K. (2006), Formation and propagation of coupled ultraslow optical soliton pairs in a cold three-state double- system, Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), [online], https://doi.org/10.1103/PhysRevE.73.056606 (Accessed October 21, 2025)