In order to maintain the reach of a typical 100G WAN transport system(~1500 km),several system improvements have to be made to r

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问题 In order to maintain the reach of a typical 100G WAN transport system(~1500 km),several system improvements have to be made to recover the los(93),including the use of low-loss low-nonlinearity(94),Raman amplification,and stronger error correction.
(94)

选项 A、optical flber
B、traffic
C、Internet
D、signaling

答案A

解析 本题考查光纤通信方面的基础知识。
为实现典型的100G广域网传输(距离大约1500km),系统不得不采用一些能够改善提高信噪比的方法,包括使用低损耗、低非线性效应的光纤、拉曼放大器以及更强的纠错技术。
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