艾里脉冲对超连续谱中异常波的影响及调控(特邀)
Influence of the Airy Pulse on Rogue Waves and its Regulation in a Supercontinuum(Invited)
刘硕 1尹聪颖 1俎群 2董宇航 1李琦 1赵赛丽3
作者信息
- 1. 河北工业大学电子信息工程学院,天津 300401
- 2. 河北工业大学机械工程学院,天津 300401
- 3. 郑州大学电气与信息工程学院,河南 郑州 450001
- 折叠
摘要
减速型有限能量Airy脉冲振荡拖尾形状和频谱受多个参数的影响,分别分析减速型有限能量Airy脉冲峰值功率、脉冲宽度、初始啁啾、截断系数和分布因子变化对异常波产生以及超连续谱的相干性和稳定性的影响.研究结果表明,减速型有限能量Airy脉冲参数变化能够对超连续谱中异常波起到调控作用并影响超连续谱的相干性和稳定性.此外,利用多目标粒子群算法对5个脉冲参数同时进行优化,将500次模拟输出孤子峰值功率平均值两倍作为判断异常波产生的标准,将产生异常波的个数及500次模拟输出孤子峰值功率分布作为优化目标,得到减速型有限能量Airy脉冲促进或抑制异常波产生的最佳脉冲参数,实现超连续谱中异常波的可控产生.
Abstract
The oscillating tailing shape and spectrum of the decelerated finite-energy Airy pulse are influenced by various parameters.This study examined the impacts of peak power,width,initial chirp,truncation coefficient,and distribution factor of the Airy pulse on the generation of rogue waves in a supercontinuum(SC)as well as the SC coherence and stability.The findings reveal that altering these parameters can regulate the rogue waves and affect the SC coherence and stability.Moreover,a multiobjective particle-swarm optimization algorithm is used to simultaneously optimize the five pulse parameters.By using the average peak power of 500 analog output solitons(i.e.,twice of that required for generating the rogue waves)and considering the number and distribution of rogue waves among the solitons as optimization objectives,this study identifies optimal parameters for the Airy pulse.These parameters either promote or suppress the generation of rogue waves,enabling controlled manipulation of rogue wave generation within the SC.
关键词
超连续谱产生/Airy脉冲/异常波/多目标粒子群算法/目标优化Key words
supercontinuum generation/Airy pulse/rogue wave/multi-objective particle swarm optimization algorithm/objective optimization引用本文复制引用
基金项目
国家自然科学基金(12272120)
国家自然科学基金(62105295)
出版年
2024
NETL
NSTL
万方数据