三阶孤子在EDFA中的传输特性  

The Transmission Characteristics of Third-Order Soliton in EDFA

作　　者：熊英[1] 

机构地区：[1]江门市广播电视大学,广东江门529000

出　　处：《光纤与电缆及其应用技术》2012年第1期1-3,17,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：对三阶孤子传输特性进行了数值研究,研究表明:三阶孤子在无增益光纤中传输时,脉冲会发生分裂、重合的周期性变化;在EDFA中传输时会有一次分裂和重合发生,之后分裂的两脉冲将不再重合,且产生新的子脉冲,子脉冲将会继续分裂、重合的传输下去;在三阶色散的影响下,孤子脉冲也会有一次分裂和重合,之后左边延迟脉冲会发生分裂,并产生小子脉冲;当对三阶孤子引入初始啁啾后,三阶色散引起的小子脉冲将不会产生。The transmission characteristics of third-order soliton are studied numerically. The results show that when third-order soliton is transmitted in non-gain medium the pulses＇ periodic changes of split and combination will occur; when transmitted in EDFA the split and combination will occur once, afterward the split two pulses will never be combined and produce new sub-pulses, and the sub-pulses will continue the transmission though split and combination; in the effect of third-order soliton, soliton pulses also will split and combination once, afterward the left delay pulses will split and produce small sub-pulses; when initial chirps are introduced into third-order soliton the small sub-pulses induced due to third-order dispersion will not be produced.

关 键 词：光孤子通信 高阶孤子 三阶色散 脉冲 啁啾 

分 类 号：TN929.11[电子电信—通信与信息系统]