Zhou Lujia, Song Zhenming, Zhang Hao
Appl Opt. 2021 Jan 20;60(3):635-640. doi: 10.1364/AO.410884.
We study numerically the propagation dynamics of an initially finite-energy chirped Airy pulse in an optical single-mode fiber when the group-velocity dispersion parameter and chirp have opposite signs. The different chirp parameters of the Airy pulse represent a special spectrum that improves the propagation. For <0, the chirped Airy pulse forms a weak breakup area. We found the change rule of the main lobe and peak intensity with the pulse propagation distance and the position of the breakup area in order to understand the importance of the initial pulse chirp. The impact of chirp and self-phase modulation to the Airy pulse is discussed.
当群速度色散参数和啁啾具有相反符号时，我们对初始具有有限能量的啁啾艾里脉冲在光学单模光纤中的传播动力学进行了数值研究。艾里脉冲的不同啁啾参数代表了一种特殊的频谱，它改善了传播。对于β<0，啁啾艾里脉冲形成一个弱分裂区域。我们发现了主瓣和峰值强度随脉冲传播距离的变化规律以及分裂区域的位置，以便理解初始脉冲啁啾的重要性。讨论了啁啾和自相位调制对艾里脉冲的影响。
