Modulation instability of femtosecond pulses in fibres with slowly decreasing dispersion

作     者：徐文成 张书敏 等 

作者机构：InstituteofQuantumElectronicsSouthChinaNormalUniversityGuangzhou510631China DepartmentofPhysicsHebeiNormalUniversityShijiazhuang050091China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2002年第11卷第1期

页      面：39-43页

核心收录：

学科分类：070207[理学-光学] 07[理学] 0702[理学-物理学] 

基　　金：the Natural Science Foundation of Guangdong Province, China(Grant 980030) the Natural ScienceFoundation of the Education Bureau of Guangdong Province, China(Grant 200019) 

主　　题：modulation instability ultrashort pulses generation fibres with slowly decreasing disper-sion third-order dispersion 

摘      要：In this paper, we investigate the modulation instability for generating femtosecond pulses in fibres with slowlydecreasing dispersion. Higher-order dispersion and higher-order nonlinear effects are taken into account when thecontinuous wave or quasi-continuous wave evolves into sub-picosecond and femtosecond pulses by modulation instabilityin the optical fibres. Our research results show that the gain spectrum of the dispersion-decreasing fibres is much widerthat in conventional *** third-order dispersion effect has no contribution to gain spectrum, while thethanself-steepening effect reduces themaximum value and gain bandwidth, and the Raman self-scattering effect widens theextent to which the modulation instability occurs.