光纤放大器中的增益色散与增益饱和效应  

Gain Dispersion and Gain Saturation in Fiber Amplifiers

作　　者：李正华[1] 沈廷根[2] 朱敏[2] 方云团[1] 

机构地区：[1]镇江船艇学院,江苏镇江212003 [2]江苏大学物理系,江苏镇江212003

出　　处：《激光与红外》2004年第4期295-297,共3页Laser & Infrared

基　　金：江苏高校省级重点实验室开放课题(KJS01041)。

摘　　要：光孤子在含光纤损耗、非线性增益饱和、增益色散效应的光纤放大器中传输时,得到非线性薛定谔方程,在一定条件下,由行波法得到的孤子解讨论了高阶效应对孤子传输的影响。由此进一步发现,增益色散效应的存在使孤子解的形式变为类孤子型,孤子放大器的高增益态是非常有利于孤子的传输,所得结论与数值解结论相符。Propagation of Optical Solitons in fiber amplifiers is discussed by considering a model that includes fiberloss,gain dispersion and gain saturation effect.By travelling wave method solutions to the nonlinear schrōdinger equations,and hence the solution for influence of soliton propagation as well as high-order effect in the fiber amplifier are discussed in detail.Further we find the solution is not secant hyperbola type because of existence gain dispersion effect,and it shows high gain state of fiber amplifier which will be very favourable to the propagation of solitons.The result with that numerical solution came to the same thing.

关 键 词：光孤子 高阶效应 光纤放大器 

分 类 号：TN25[电子电信—物理电子学]