色散平坦渐减光纤中超连续谱产生的特性研究  

Study on supercontinuunl generation in dispersion-flattenedand decreasing fiber

作　　者：徐永钊[1] 徐文成[1] 于丙涛[1] 刘颂豪[1] 

机构地区：[1]华南师范大学量子电子学研究所,广东广州510631

出　　处：《量子电子学报》2004年第6期863-867,共5页Chinese Journal of Quantum Electronics

基　　金：广东省教育厅自然科学基础研究项目(200019)资助课题

摘　　要：理论研究了色散平坦渐减光纤中超连续谱的产生。研究结果表明,光纤的色散特征对光脉冲的传输和超连续谱的产生有重要影响。由于在泵浦波长处光纤的色散斜率为零,因此脉冲在光纤中传输时保持对称,并产生对称的超连续谱。光纤的色散曲线越平坦,色散曲线的两个零色散波长相距就越远,越有利于超连续谱的展宽。The supercontinuum generation in the dispersion-flattened and decreasing fiber was theoretically investigated. The research indicated that the dispersion characteristic of the fiber has influence on pulse evolution and supercontinuum generation. Because the dispersion slope of the fiber at the pump wavelength is equal zero, the pulse keeps symmetry while it propagates in the fiber, and the symmetrical supercontinuum is resulted in. It is more suitable for broad supercontinuum generation when the dispersion curve of the fiber is flatter and the distance between the two zero-dispersion wavelengths of the fiber is farther from each other.

关 键 词：纤维与波导光学 超连续谱 色散渐减光纤 群速度色散 

分 类 号：TN929[电子电信—通信与信息系统]