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引用本文格式: Wang Hong-Yu,Jia Wei-Guo,Liu Zhen,Menke Neimule. Transmission characteristics of chirped Gaussian pulses in the anomalous dispersion region of silicon-on-insulator waveguides [J]. J. At. Mol. Phys., 2021, 38: 015001 (in Chinese) [王红玉,贾维国,刘振,门克内木乐. 硅基光波导中啁啾高斯脉冲在反常色散区的传输特性 [J]. 原子与分子物理学报, 2021, 38: 015001]
 
硅基光波导中啁啾高斯脉冲在反常色散区的传输特性
Transmission characteristics of chirped Gaussian pulses in the anomalous dispersion region of silicon-on-insulator waveguides
摘要点击 87  全文点击 8  投稿时间:2019-11-29  修订日期:2019-12-18
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DOI编号   
中文关键词   硅基光波导  高斯脉冲  啁啾  反常色散区
英文关键词   Silicon-on-insulator waveguides,Gaussian pulse ,Chirp, Anomalous dispersion region
基金项目   国家自然科学基金
作者单位E-mail
王红玉 内蒙古大学物理科学与技术学院 15689819785@163.com 
贾维国 内蒙古大学物理科学与技术学院 jwg1960@163.com 
刘振 内蒙古大学物理科学与技术学院 895088425@qq.com 
门克内木乐 内蒙古大学 mknml@aliyun.com 
中文摘要
    本文利用激光脉冲在硅基光波导(SOI)中传播时满足的非线性薛定谔方程,采用分步傅里叶变换,数值模拟了硅基光波导中啁啾高斯脉冲在反常色散区的传播特性.通过模拟发现,三阶色散正负主要决定了脉冲的振荡波形性质,克尔效应与双光子吸收对脉冲波形起调制作用,自由载流子效应则可以忽略.初始啁啾参数的正负存在影响了脉冲的振荡强弱变化和脉冲中心的漂移的趋势,并且无论是正啁啾还是负啁啾,脉冲振荡与漂移都随着啁啾的增大而更加剧烈.同时啁啾正向增大与负向增大,都将导致脉冲展宽越严重致主峰峰值越低.
英文摘要
    In this paper, we numerically simulate the transmission characteristics of the Gaussian pulses in silicon-on-insulator (SOI) waveguides using the split-step Fourierm ethod with MATLAB. Through the?simulation, it?is?found that?the oscillation property of Gaussian pulse is mainly determined by third-order dispersion. Kerr effect intensifies the oscillation and drift of the pulse and causes the pulse compression, two-photon absorption results in a decrease in pulse peak power and a faster decrease over short distances and the free carrier effect is negligible. The existence of initial chirped parameters affects the oscillation strength and the drift of pulse center. Regardless of whether chirp is positive or negative, the main peak of the Gaussian pulse is decreasing. When the initial chirp coefficient increases positively and negatively,the oscillations of the pulses are more intense, and the drift of the pulse center is more obvious.

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