Gordon J P, Haus H A
Opt Lett. 1986 Oct 1;11(10):665-7. doi: 10.1364/ol.11.000665.
In an optical-communications system using soliton pulse transmission, periodic amplification is needed to maintain the energy of the solitons. We show that amplifier noise causes a soliton's group velocity to undergo a random-walk process. The resultant timing errors at the receiver limit the system's product of length times bit rate, in one example, to about 24 000 GHz-km.
在使用孤子脉冲传输的光通信系统中，需要进行周期性放大以维持孤子的能量。我们证明放大器噪声会使孤子的群速度经历一个随机游走过程。在一个实例中，接收机处产生的定时误差将系统的长度与比特率之积限制在约24000GHz·km。
