摘要
采用分步傅里叶法数值模拟了超高斯脉冲在光子晶体光纤中的传输过程,着重分析了超高斯脉冲的脉冲阶数及所带初始啁啾对信号传输的影响.结果表明:随超高斯脉冲阶数增大,脉冲输出波形出现分裂,频谱加宽.若初始啁啾为正,则会使波形振荡分裂加剧,频谱进一步加宽;而若初始啁啾为负,则输出波形无分裂,输出频谱变窄.
In this paper, the transmission of super gaussian pulse in photonic crystal fiber has been simula- ted by FFT, and it has been mainly analyzed that the influence of Order and initial chirp which the super Gaussian pulse on its transmission. The results show that the splitting of output pulse waveform and the broadening of its spectrum have occurred with increasing of super Gaussian pulse＇ order. If initial chirp is positive, the splitting and broadening is increasing. However, if it is negative, the output waveform is bet- ter, and the output spectrum becomes narrow.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第1期42-45,共4页
Journal of Southwest China Normal University(Natural Science Edition)
基金
重庆市教委科学技术研究项目(KJ101313)
关键词
光子晶体光纤
初始啁啾
脉冲阶数
超高斯脉冲
photonic crystal fiber
initial chirp
pulse order
super Gaussian Pulse
