摘要
基于超短光脉冲在单模光纤中传输时高阶非线性效应的影响。应用非线性薛定谔方程(HONLS)理论,考虑光纤色散三阶效应,推导出无啁啾的高斯脉冲沿光纤传输时脉冲变化的表达式,并对理论结果进行了数值模拟与分析。结果表明,三阶色散会引起光脉冲形状发生畸变,会在其前沿或后沿附近形成非对称的振荡结构。
On the theoretic basis the ultra.short optical pulse propagating in single-mode fiber is affected by the high order nonlinear effect. Using the nonlinear Schrodinger （HONLS） equation theory, the analytic expression was derived by taking into account the third-order dispersion as a Gauss pulse without chirp propagation along the single-mode fiber. The theories were numerically simulated and analyzed. The results show that the third order dispersion generates distortion to the optical pulse shape with an unsymmetrical structure at the front or back edge.
出处
《光学技术》
EI
CAS
CSCD
北大核心
2006年第1期148-150,共3页
Optical Technique
关键词
超短脉冲
光纤非线性
三阶色散
ultrashort optical pulse
fiber nonlinear effect
third order dispersion
