Simultaneous optical signal to noise ratio and symbol rate estimation with blind chromatic dispersion compensation for auxiliary amplitude modulation optical signals

被引：0
|
作者：
Wei, Junyu [1 ]
Qin, Jiangyi [1 ]
Huang, Zhiping [1 ]
Guo, Xiaojun [1 ]
机构：
[1] Natl Univ Def Technol, Coll Mech Engn & Automat, Changsha 410073, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2016年 / 14卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Blind equalization - Signal to noise ratio - Chromatic dispersion - Optical signal processing;
D O I：
10.3788/COL201614.090603
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the peak to valley ratio (PTVR) of the average magnitude difference function (AMDF), we present a novel optical signal to noise ratio (OSNR) and symbol rate (SR) estimation method for commonly used auxiliary amplitude modulations (AAMs). Moreover, it is demonstrated that the influence of chromatic dispersion (CD) on the method can be mitigated by maximizing the PTVR of the AMDF with additional tunable dispersion compensators. The results of simulations show that the OSNR estimation error can be kept within 0.8 dB in the wide OSNR range of (12, 32) dB, while the SR estimation error is below 0.079% for four widely used 10 Gsymbol/s AAM signals.
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页数：5
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