超连续谱
光学
啁啾声
截断(统计)
物理
色散(光学)
拉曼散射
波长
光子晶体光纤
高斯分布
脉搏(音乐)
脉冲整形
纤维
材料科学
拉曼光谱
量子力学
激光器
统计
复合材料
探测器
数学
作者
Huaiyu Peng,Yan Li,Jie Peng,Bing Wen,Yangbao Deng,Pinghua Tang
出处
期刊:Optik
[Elsevier]
日期:2021-11-13
卷期号:250: 168324-168324
被引量:5
标识
DOI:10.1016/j.ijleo.2021.168324
摘要
We numerically investigate the evolution of Airy-Gaussian (AiG) pulses in photonic crystal fiber with two zero-dispersion wavelengths. Firstly, in the absence of higher-order nonlinear effects, the effects of three essential parameters of AiG pulses (truncation coefficient, distribution factor, and initial chirp) on the pulse evolution are studied in detail. The results indicate that initial AiG pump pulses with a small truncation coefficient, small distribution factor, and positive chirp are beneficial for obtaining a wider supercontinuum spectrum. Moreover, we further take stimulated Raman scattering (SRS) and self-steepening (SS) effects into account, and find that SRS greatly broadens the output spectrum when AiG pulses with a small distribution factor (χ0 = 0.1), however, it also leads to obvious spectrum collapse and the collapse will be reduced to a certain extent due to SS.
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