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

被引：18

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

页码：323 / 328

页数：6

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