色散缓变光纤中皮秒啁啾脉冲的孤子效应压缩  

The compression effect of chirped picosecond pulses in fibers with slowly decreasing dispersion

作　　者：杨广强[1] 杨性愉[1] 

机构地区：[1]内蒙古大学理工学院物理系,呼和浩特010021

出　　处：《光通信研究》2002年第5期40-45,共6页Study on Optical Communications

基　　金：内蒙古自然科学基金资助项目 ( 2 0 0 0 130 1)

摘　　要：文章从描述皮秒光脉冲在色散缓变光纤 (FSDD)中所满足的非线性 Schrodinger(NLS)方程出发 ,数值模拟了高阶皮秒光孤子在不同的 FSDD中的孤子效应压缩 ,并讨论了初始啁啾对其的影响 .结果表明 ,利用 FSDD和孤子效应压缩来压缩带有初始啁啾的高阶皮秒光孤子 ,可以得到更高的压缩比和品质因子 ,压缩后的脉冲的峰值功率明显提高 ,而且脉冲被压缩到最窄所需的光纤长度也大大缩短 .最后讨论了初始脉宽的影响 .The soliton-effect of picosecond pulse compression in fibers with slowly decreasing dispersion is studied. In this paper, by soluting the nonlinear Schrdinger equation (NLS) including gain effect numerically, we find that good compression effect will be obtained if initial chirp is added on pulse in optical fibers with slowly decreasing dispersion. Furthermore, the effect of initial width of pulse on soliton-effect of picosecond pulse compression is also obvious.

关 键 词：皮秒啁啾脉冲 色散缓变光纤 孤子效应压缩 初始啁啾 FSDD 

分 类 号：TN818[电子电信—信息与通信工程]