五阶非线性效应下飞秒光孤子间相互作用的数值研究  

Numerical Research of Interaction Between Femtosecond Solitons Under Quintic Nonlinear Effect

作　　者：岳进[1] 杨荣草[1] 

机构地区：[1]山西大学物理电子工程学院

出　　处：《光电子．激光》2007年第12期1513-1517,共5页Journal of Optoelectronics·Laser

摘　　要：以包含五阶非线性效应的高阶非线性薛定谔方程为模型,数值研究了饱和非线性光纤中飞秒孤子间的相互作用。结果表明,五阶非线性效应影响下,飞秒孤子间的相互作用与皮秒孤子情况大不相同,其相互作用更为严重,这对光孤子通信系统是非常有害的。数值计算结果发现,同时采用不等振幅和不等位相法,选取合适的振幅比和相对相位可以对飞秒孤子间的相互作用进行有效的抑制。Based on the model of the hiqgh-order nonlinear Schrodinger equation with quintic term,we numerically study the interaction between the femtosecond solitons in optical fiber with saturate nonlinearity. The results show that,under quintic nonlinear effect, the interaction between the femtosecond solitons is more serious than that of picosecond solitons. This interaction is very harmful to the optical soliton communication. The numerical results find that the interaction may be well suppressed by combining the unequal amplitude method and the unequal phase method under appropriate ratio of amplitudes and relative phase.

关 键 词：五阶非线性效应 飞秒孤子 相互作用 

分 类 号：O431[机械工程—光学工程] O437[理学—光学]