10GHz ps光孤子在G652光纤中的绝热传输实验

利用二次谐波频率分辨光学门(FROG)脉冲分析仪,实验研究了一阶啁啾ps光孤子在普通单模光纤(SMF)中长距离绝热传输时脉冲波形、脉宽和啁啾的变化规律。实验结果表明,在色散较大的标准SMF中,一阶啁啾孤子的稳定传输长度超过1000个色散长度,即很好地保持双曲正割波形不变(啁啾不影响孤子的波形),但啁啾孤子的脉宽展宽速度高于非啁啾孤子绝热传输的微扰结果;采取预加重措施,可以减小孤子脉宽的增大。因此,对于占空比较小的ps孤子脉冲,可以不必采用复杂的消啁啾和色散管理措施,就可以利用绝热方式进行稳定传输。

Experimental study of adiabatic transmission of 10 GHz picoseconds solitons in G652 fiber

The pulse profile,pulse width of the chirped picosecond soliton after long distance adiabatic transmission in standard fiber are experimentally inverstigated by use of SHG-FROG analyzer.The experimental results show that the chirped N=1 soliton pulses can adiabatically transmit over 1 000 dispersion length with the stable profile,which shows that the influence of frequency chirp and fiber loss on soliton profile is little;But the broadening of soliton pulses with chirp is more larger than that without chirp...