非线性吸收效应对自相似脉冲传输特性的影响  

Effect of the Nonlinear Saturable Absorber on Self-similar Pulse

作　　者：王成[1] WANG Cheng(Changzhi Vocational and Technical College, Changzhi 046011, China)

机构地区：[1]长治职业技术学院,长治046011

出　　处：《内燃机与配件》2017年第24期171-173,共3页Internal Combustion Engine & Parts

摘　　要：以描述光纤放大器中飞秒脉冲演化的高阶非线性薛定谔方程为理论模型,采用分步傅里叶方法,对非线性吸收效应及放大器系统中的自相似脉冲传输的特性及其影响,进行了数值模拟研究,结果表明:随着非线性饱和吸收效应参数绝对值变大,自相似脉冲的功率会逐渐减小,峰值振幅也变得越来越小,而脉冲宽度则呈现略微增大的变化趋势。Based on the high-order nonlinear Schr觟dinger equation（NLSE）, the effections of nonlinear saturable absorber on the selfsimilar pulse are studied by using the standard split-step Fourier method. The results show that when the absolute value nonlinear saturable absorber parameter is increasing, the power and the maximum amplitude of the self-similar pulse is becoming smaller, but the pulse width is increasing slowly.

关 键 词：自相似脉冲 非线性吸收效应 光纤放大器 

分 类 号：TN722[电子电信—电路与系统]