摘要
以非线性薛定谔方程为基础,针对纳秒量级高斯型啁啾脉冲在单模光纤中的传输问题展开讨论,利用分步傅里叶方法,通过数值模拟,研究讨论了色散与非线性效应对展宽器展宽后啁啾脉冲频谱以及波形的影响,在此基础上,讨论了压缩后输出信号光的对比度问题。研究结果表明,中心波长为1053 nm的低峰值功率(I<30 mW)输入啁啾信号光脉冲,在单模光纤内传输200 m后,脉冲对比度在3 ps的时间窗口上可达到1025量级。
Based on the nonlinear Schrdinger equation,transmission of the Gauss type chirped-pulse of nanosecond in width in single-mode fiber is discussed.The effects of aberration and nonlinear effects on both spectrum and waveform of the chirped-pulse are numerically simulated with split-step Fourier method and the contrast of the compressed pulse is analyzed in detail.The results show that for the input chirped-pulse of peak power smaller than 30 mW and of center wavelength at 1053 nm,after the transmission in 200 m single-mode fiber,the contrast of the compressed pulse is up to 1025 in 3 ps time window.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2010年第5期1234-1237,共4页
Acta Optica Sinica
基金
国家863计划资助课题
关键词
光纤光学
啁啾脉冲
单模光纤
色散
非线性效应
对比度
fiber optics
chirped-pulse
single-mode fiber
dispersion
nonlinear effects
contrast
