线性和二次电光效应共同作用下的非相干耦合亮-暗孤子族

J4 ›› 2016, Vol. 33 ›› Issue (1): 70-74.

线性和二次电光效应共同作用下的非相干耦合亮-暗孤子族

苏艳丽，姜其畅，吉选芒

运城学院物理与电子工程系，运城 044000

收稿日期:2015-01-20 修回日期:2015-04-07 出版日期:2016-01-28 发布日期:2016-01-06
通讯作者: 苏艳丽（1979-- ）女，理学硕士，副教授，主要从事物理教学及非线性光学方面的研究 E-mail:syli1979@163.com
基金资助:
山西省自然科学基金（2011011003-2）

Incoherently coupled bright-dark soliton family supported by the combined action of the linear and quadratic electro-optic effects

SU Yan-li, JIANG Qi-chang, JI Xuan-mang

Department of Physics and Electronic Engineering, Yuncheng University, Yuncheng, 044000

Received:2015-01-20 Revised:2015-04-07 Published:2016-01-28 Online:2016-01-06

摘要/Abstract

摘要：

为了研究非相干耦合亮-暗孤子族的特性，采用数值模拟的方法，求解孤波耦合方程，在综合考虑线性和二次电光效应的情况下，分析了亮-暗孤子族的稳态解和传播特性。结果表明：当外加电场为正值时，系统所支持的亮-暗孤子族中，各亮孤子分量的强度之和略大于暗孤子分量的强度之和，此时，线性和二次电光效应所导致的非线性是相互增强的。当外加电场为负值时，系统所支持的亮-暗孤子族中，各亮孤子分量的强度之和略小于暗孤子分量的强度之和，此时，线性和二次电光效应所导致的非线性是相互抵消的。此外，亮-暗孤子族中的各个分量均可以稳定传输。

关键词: 非线性光学；光折变效应；电光效应；孤子族

Abstract:

The solitary wave coupled equations are solved numerically to study the characteristics of bright-dark soliton family. The steady-state solution and stability of soliton family supported by the combined action of the linear and quadratic electro-optic effects are analyzed. The results show that the total intensities of bright soliton components are slightly larger than that of dark soliton components in the bright-dark soliton family when the external bias field is positive and in this case, the nonlinearities result from the linear and quadratic electro-optic effects reinforce each other. When the external bias field is negative, the total intensities of bright soliton components are slightly smaller than that of dark soliton components in the bright-dark soliton family and the nonlinearities result from the linear and quadratic electro-optic effects either cancel out. Moreover, the every component in bright-dark soliton family propagates stably.

Key words: nonlinear optics; photorefractive effect; electro-optic effect; soliton family

苏艳丽，姜其畅，吉选芒. 线性和二次电光效应共同作用下的非相干耦合亮-暗孤子族[J]. J4, 2016, 33(1): 70-74.

SU Yan-li, JIANG Qi-chang, JI Xuan-mang . Incoherently coupled bright-dark soliton family supported by the combined action of the linear and quadratic electro-optic effects[J]. J4, 2016, 33(1): 70-74.

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