Simple feed-forward wide-range frequency offset estimator for optical coherent receivers

被引：16
|
作者：
Diniz, J. C. M. [1 ,2 ]
de Oliveira, J. C. R. F. [1 ]
Rosa, E. S. [1 ,2 ]
Ribeiro, V. B. [1 ,2 ]
Parahyba, V. E. S. [1 ,2 ]
da Silva, R. [1 ]
da Silva, E. P. [1 ,2 ]
de Carvalho, L. H. H. [1 ]
Herbster, A. F. [1 ]
Bordonalli, A. C. [2 ]
机构：
[1] CPqD Fdn, Reconfigurable Opt Syst Lab, BR-13086902 Campinas, SP, Brazil
[2] Univ Estadual Campinas, Microwave & Opt Dept, BR-13083852 Campinas, SP, Brazil
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 26期
关键词：
D O I：
10.1364/OE.19.00B323
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate a hardware-efficient, feed-forward, wide-range frequency offset estimator for DSP-based optical coherent receivers. Using a simple relationship of signal spectrum, this estimator is capable to estimate offsets in a range compliant with OIF requirements. Obtained results show that this estimator has a high tolerance to spectrum asymmetry caused by electrical and optical signal filtering, even when using return-to-zero pulse shaping. (C)2011 Optical Society of America
引用
收藏
页码：323 / 328
页数：6
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