单模光纤反常色散区零色散波长附近的啁啾演变  

The Evolution of Chirp Near the Zero Dispersion Point in the Region of Anomalous Dispersion in Monomode Optical Fibers

作　　者：王晶 苗洪利[1,2] 刘秀敏 冯璐[1,2] 冯启元 

机构地区：[1]内蒙古师范大学物理系 [2]内蒙古大学物理系

出　　处：《光电子．激光》1998年第1期58-60,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金;内蒙古教育厅基金

摘　　要：当单模光纤的反常色散区二阶、三阶色散同时存在时，首次推出了群速度色散致啁啾的解析表达式，并讨论了啁啾演变过程。利用数值方法，模拟了零色散波长附近群速度色散效应与自相位调制效应共同作用时啁啾的演变。结果表明，三阶色散会导致脉冲沿的畸变。Taken into account second and third order dispersion in the region of anomalous dispersion,an analytic expression of the dispersion induced chirp is obtained.The evolution of the second and third order dispersioninduced chirp in anomalous dispersion is investigated.using numerical method,we simulate the evolution of chirp near the zero dispersion point when the dispersion interacts with nonlinear effect.Third order dispersion induced distortion of the edge of the pulse can be found through the result.

关 键 词：三阶色散 啁啾 零色散波长 单模光纤 光纤元件 

分 类 号：TN253[电子电信—物理电子学]