期刊论文

Wen, Shuangchun

中文

激光杂志

0253-2743

1998

19

4

34-35, 40

本校为第一机构

利用绝热优动法研究了色散缓变光纤中Ｒａｍａｎ弧了自频移效应，得到了色散缓变光纤中Ｒａｍａｎ弧子自频移的表达式。结果表明：光纤色散变化率存在一个可以有效抑制弧子自频移的阈值，当光经行色散变化率大于这个阈值时，色散缓变光纤可以抑制弧子自频移，而当光经行色散变化率小于这个阈值时，色散缓变光纤不仅不能抑制弧子自频移，反而加剧弧子自频移。

Raman soliton self-frequency shift (SSFS) of ultrashort pulses propagating in a dispersion-decreasing fiber (DDF) was studied by using adiabatic perturbation method. An expression for Raman SSFS in DDF was obtained. The results show that there exists a threshold of the rate of the fiber dispersion decrease for the suppression of SSFS of solitons propagating in DDF. Only when the rate of the fiber dispersion decrease is larger than the threshold, the SSFS can be suppressed in the DDF. When the rate of the fiber dispersion decrease is l...