色散阶变光纤中啁啾演变的研究  

Studies on Evolution of Chirp in the Stepwise decreasing dispersion

作　　者：苗洪利[1,2] 王晶 刘秀敏[1,2] 冯璐 冯启元[1,2] 

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：《中国激光》1998年第12期1087-1090,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金

摘　　要：给出了色散阶变光纤中群速度色散效应导致的啁啾表达式，采用数值方法模拟了该光纤中的啁啾演变过程。研究结果表明：色散阶变光纤中的啁啾以色散缓变光纤中啁啾为中心跳跃式变化，逐渐与色散缓变光纤中啁啾重合，且比常规光纤中的啁啾小。An analytic expression is obtained for the chirp induced by the dispersion in the stepwise decreasing dispersion fiber. Using numerical method, we simulate the evolution of chirp in the stepwise decreasing dispersion fiber. The results show that the chirp in the stepwise decreasing dispersion fiber varies jumply taking the chirp in the fiber of slowly decreasing dispersion as the centre at the beginning, then the chirps coincide gradually with each other. However the chirp in the stepwise descreasing despersion fiber is smaller than the chirp in the conventional fiber.

关 键 词：色散阶变光纤 啁啾 演变 光纤元件 

分 类 号：TN253.01[电子电信—物理电子学]