非线性光纤信道容量预测(英文)  

Nonlinear Optical Fiber Channel Capacity Estimation

作　　者：漆晓琼[1] 张晓萍[1] 

机构地区：[1]兰州大学信息科学与工程学院,兰州730000

出　　处：《光子学报》2007年第B06期14-17,共4页Acta Photonica Sinica

基　　金：Supported by Program for New Century Excellent Talents in University(NECT-04-0981)

摘　　要：为了计算非线性光纤传输对其信道容量的作用,从信号功率传输特性出发,提出了一种计算非线性光纤信道容量的数值解法,分别得到了非线性信道容量与输入脉冲峰值功率、自发辐射噪音系数、光纤非线性参量及群速色散之间的关系曲线并得出结论:单纯的提高脉冲输入功率并不能提高非线性信道容量,尤其对大功率系统.For studying the accurate impacts of nonlinear fiber propagation on channel capacity conveniently, a numerical calculating method derived from signal power transmission property is presented, its dependences on input pulses peak power is obtained, and spontaneous emission noise intensity, nonlinear coefficients and group velocity dispersion of fiber are amplified. It can also conclude that the improvement of nonlinear channel capacity will not go with the improvement of input signal power especially for larger power input case, which can be used as a guideline to calculate nonlinear channel capacity theoretically and improve nonlinear channel capacity in technical application.

关 键 词：非线性光纤 信号功率 信道容量 

分 类 号：TN929.11[电子电信—通信与信息系统] TN911.4[电子电信—信息与通信工程]