Zhang Lifu, Liu Kun, Zhong Haizhe, Zhang Jinggui, Li Ying, Fan Dianyuan
Opt Express. 2015 Feb 9;23(3):2566-76. doi: 10.1364/OE.23.002566.
We study both analytically and numerically the propagation dynamics of an initially chirped Airy pulse in an optical fiber. It is found that the linear propagation of an initially chirped Airy pulse depends considerably on whether the second-order dispersion parameter β(2) and chirp C have the same or opposite signs. For β(2)C<0, the chirped Airy pulse first undergoes an initial compression phase, then reaches a breakup area as depending on the values of C, and then experiences a lossy inversion transformation such that it continues to propagate with an opposite acceleration. The chirped Airy pulse is always dispersed during propagation in the case of β(2)C>0. The impact of truncation coefficient and Kerr nonlinearity on the chirped Airy pulse propagation is also disclosed separately.
我们通过解析和数值方法研究了初始啁啾艾里脉冲在光纤中的传播动力学。研究发现，初始啁啾艾里脉冲的线性传播在很大程度上取决于二阶色散参数β(2)和啁啾C是同号还是异号。对于β(2)C<0的情况，啁啾艾里脉冲首先经历一个初始压缩阶段，然后根据C的值到达一个分裂区域，接着经历一个有损反转变换，使其以相反的加速度继续传播。在β(2)C>0的情况下，啁啾艾里脉冲在传播过程中总是会发生色散。同时还分别揭示了截断系数和克尔非线性对啁啾艾里脉冲传播的影响。
