【摘要】 从描述光纤中皮秒孤子传输的修正非线性薛定谔方程出发,应用对称分步傅立叶变换对色散位移光纤中Kerr系数随机扰动影响下的孤子间相互作用进行了数值研究。结果表明,Kerr系数随机扰动下孤子间的作用比Kerr系数不变时更为严重,前者增强了孤子间的相互作用,恶化了孤子的传输特性。研究结果还表明,传统的不等振幅传输法在一定程度上仍然可以有效地抑制Kerr系数扰动影响下的孤子间作用。更多还原

【Abstract】 Starting fromthe modified nonlinear Schr⒐dinger equation describing the propagation of picoseconds optical soliton,the interaction of solitons in dis-persion-shifted fibers with Kerr coefficient distributing randomly is studied numerically by making use of symmetrical slit-step Fourier transformation method.The results show that the interaction of solitons under the influence of Kerr coefficient disturbing randomly is stronger than that of Kerr coefficient is invariable.Therefore,the propagation properties of soliton are deteriorated.It is also shown that the traditional unequal amplitude imputing method can still reduce the inter-action of Kerr coefficient random distribution effectively in a certain degree.更多还原