色散渐减光纤链中孤子的周期集总放大和恢复

发布时间：2018-03-15 20:40

本文选题：非线性光学　切入点：孤子　出处：《光学学报》2017年06期 　论文类型：期刊论文

【摘要】：基于包含渐减色散和周期集总放大的变系数非线性薛定谔方程,通过一种简单变换,解析出其精确孤子解,并研究了色散渐减周期集总放大(DDPLA)光纤链路中孤子的传输、放大和恢复。研究结果表明,当光纤色散、损耗和放大器增益相互平衡时,色散渐减光纤链路中可实现孤子的周期放大和恢复;而且可根据光纤损耗和放大周期来设置放大器的增益,或根据光纤损耗和放大器增益来设置放大周期,从而实现孤子的周期性放大或恢复。另外,采用数值计算的方法讨论了孤子的稳定性和相邻孤子间的相互作用。研究结果对实际的色散渐减周期集总光纤链中孤子的传输及周期放大链路的精确配置具有一定的理论指导意义。
[Abstract]:Based on the nonlinear Schrodinger equation with variable coefficients including decreasing dispersion and total amplification of periodic sets, the exact soliton solution is obtained by a simple transformation, and the transmission of soliton in the fiber link is studied. Amplification and recovery. The results show that the periodic amplification and recovery of soliton can be realized in the fiber link with dispersion decreasing when the dispersion loss and amplifier gain are balanced. Furthermore, the gain of the amplifier can be set according to the fiber loss and the amplification period, or the amplification period can be set according to the fiber loss and the amplifier gain, thus realizing the periodic amplification or recovery of the soliton. The stability of soliton and the interaction between adjacent solitons are discussed by means of numerical calculation. The results have a good effect on the transmission of solitons and the accurate configuration of periodic amplification links in practical dispersion decreasing periodic lumped optical fiber chains. Definite theoretical guidance significance.
【作者单位】：山西大学物理电子工程学院;山西大学计算中心;
【基金】：国家自然科学基金(61271160) 山西省自然科学基金(2016011038)
【分类号】：O437;TN929.11

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