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以半极大全宽为 2 0 ps的高斯型光脉冲表示 1码 ,用相应的各阶超高斯型光脉冲分别表示 1 1、1 1 1、1 1 1 1、1 1 1 1 1、1 1 1 1 1 1等码 .在无损耗的三段色散补偿系统中 ,当路径平均色散为负、零及正 ,传输码率为 1 7Gb/s时 ,讨论了脉冲的演变及脉冲间的相互作用 ,结果表明 ,在零和正平均色散下 ,1 1码和 1 1 1码传输效果较差 .文中对伪随机的 64位码进行传输模拟 ,做出了传输后的眼图 .计算说明负平均色散下传输效果最好 .
One Gaussian optical pulse with a full-width half-maximum width of 20 ps is expressed as 1 yd and is represented by corresponding super-Gaussian optical pulses of the respective order 1 1,1 1 1,1 1 1,1 1,1 1 1,1 1,1 1 1 1 1, etc. In the lossless three-stage dispersion compensation system, when the average path dispersion is negative, zero and positive and the transmission bit rate is 17 Gb / s, the evolution of the pulse and the inter-pulse interaction are discussed The results show that under the zero and positive average dispersion, the transmission performance of 1 1 code and 1 1 1 code is poor.This paper simulates the transmission of pseudo-random 64-bit code and makes the eye diagram after transmission.The calculation shows that the negative mean dispersion Under the best transmission.