%0 Journal Article
%T Modulation instability of femtosecond pulses in fibres with slowly decreasing dispersion
%A Xu Wen-Cheng
%A Zhang Shu-Min
%A Chen Wei-Cheng
%A Luo Ai-Ping
%A Guo Qi
%A Liu Song-Hao
%A <br>徐文成
%A 张书敏
%A 陈伟成
%A 罗爱平
%A 郭旗
%A 刘颂豪
%J 中国物理 B
%D 2002
%I 
%X In this paper, we investigate the modulation instability for generating femtosecond pulses in fibres with slowly decreasing dispersion. Higher-order dispersion and higher-order nonlinear effects are taken into account when the continuous wave or quasi-continuous wave evolves into sub-picosecond and femtosecond pulses by modulation instability in the optical fibres. Our research results show that the gain spectrum of the dispersion-decreasing fibres is much wider than that in conventional fibres. The third-order dispersion effect has no contribution to gain spectrum, while the self-steepening effect reduces the maximum value and gain bandwidth, and the Raman self-scattering effect widens the extent to which the modulation instability occurs.
%K modulation instability
%K ultrashort pulses generation
%K fibres with slowly decreasing dispersion
%K third-order dispersion<br>慢衰减色散光纤
%K 毫微微秒脉冲
%K 调制非稳定性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=B0F5C2A110D4EB9CCF5E7AD307C25286&yid=C3ACC247184A22C1&vid=708DD6B15D2464E8&iid=CA4FD0336C81A37A&sid=7C3A4C1EE6A45749&eid=BE33CC7147FEFCA4&journal_id=1009-1963&journal_name=中国物理&referenced_num=2&reference_num=0