【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。更多还原

【Abstract】 The solitary wave coupled equations were solved numerically to study the characteristics of brightdark soliton family.The steady-state solution and stability of soliton family supported by the combined action of the linear and quadratic electro-optic effects were 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,every component in bright-dark soliton family propagates stably.更多还原