Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel.
Opt Lett. 2013 Jul 15;38(14):2499-501. doi: 10.1364/OL.38.002499.
By means of direct simulations and theoretical analysis, we study the nonlinear propagation of truncated Airy pulses in an optical fiber exhibiting both anomalous second-order and strong positive third-order dispersions (TOD). It is found that the Airy pulse first reaches a finite-size focal area as determined by the relative strength of the two dispersion terms, and then undergoes an inversion transformation such that it continues to travel with an opposite acceleration. The system notably features tight focusing if the TOD is a dominant factor. These effects are partially reduced by Kerr nonlinearity.
通过直接模拟和理论分析，我们研究了在同时具有反常二阶和强正三阶色散（TOD）的光纤中截断的艾里脉冲的非线性传播。研究发现，艾里脉冲首先在两个色散项的相对强度决定的有限大小的焦域中达到峰值，然后经历反转变换，使其以相反的加速度继续传输。如果 TOD 是主导因素，系统则具有明显的紧聚焦效应。这些效应在一定程度上被克尔非线性所减弱。
