| 自相位调制的频谱分析 |
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| 引用本文： | 陈胜钰,邱怡申,李雪梅.自相位调制的频谱分析[J].闽江学院学报,2006,27(2):37-41. |
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| 作者姓名： | 陈胜钰 邱怡申 李雪梅 |
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| 作者单位： | 1. 闽江学院物理学与电子信息工程系,福建,福州,350108
2. 福建师范大学物理与光电信息科技学院,福建,福州,350007 |
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| 基金项目： | 福建省教育厅资助项目(JB04165) |
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| 摘 要： | 分析了部分相干脉冲传输时,当光纤通信系统中非线性效应起主要作用,色散相对比较弱时,由自相位调制(SPM)引起的频谱演变．给出了由自相位调制(SPM)引起的频谱演变的普遍表示,即单载频脉冲的SPM引起的啁啾频谱与光源的频谱的卷积,通过数值计算给出从相干脉冲到非相干脉冲的频谱演变规律．
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| 关 键 词： | 频谱分析 自相位调制 啁啾 |
| 文章编号： | 1009-7821（2006）02-037-05 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005年4月29日 |
Spectral Analysis of the Self-phase Modulation |
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| CHEN Sheng-yu,QIU Yi-shen,LI Xue-mei.Spectral Analysis of the Self-phase Modulation[J].Journal of Minjiang University,2006,27(2):37-41. |
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| Authors: | CHEN Sheng-yu QIU Yi-shen LI Xue-mei |
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| Abstract: | The evolution of spectrum for partly coherent pulse transmitting is expounded by self-phase modulation(SPM), when the impact of nonlinear effects is significant and dispersion can be omitted. The common equation of the evolution of spectrum caused by selfphase modulation (SPM)is presented, which is the convolution of action spectrum and chirped spectrum caused by selfphase modulation when carrier frequency is single. The law of the evolution of spectrum from coherent pulse to incoherent pulse is presented by using numerical computation. |
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| Keywords: | spectral analysis self-phase modulation chirp |
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