PROUD-based method for simple real-time in-line characterization of propagation-induced distortions in NRZ data signals

被引：2

作者：

Martins, Hugo F. ^{[1
]}

Pastor-Graells, Juan ^{[2
]}

Cortes, Luis Romero ^{[3
]}

Piote, Daniel ^{[1
]}

Martin-Lopez, Sonia ^{[2
]}

Azana, Jose ^{[3
]}

Gonzalez-Herraez, Miguel ^{[2
]}

机构：

[1] FOCUS SL, Madrid 28004, Spain

[2] Univ Alcala de Henares, Dept Elect, Escuela Politecn Super, Madrid 28871, Spain

[3] Inst Natl Rech Sci Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada

来源：

OPTICS LETTERS | 2015年 / 40卷 / 18期

基金：

欧洲研究理事会;

关键词：

DISPERSION;

D O I：

10.1364/OL.40.004356

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple, in-line method for real-time full characterization (amplitude and phase) of propagation distortions arising because of group velocity dispersion and self-phase modulation on 10-20 Gbps transmitted NRZ optical signals is reported. It is based on phase reconstruction using optical ultrafast differentiation (PROUD), a linear and self-referenced technique. The flexibility of the technique is demonstrated by characterizing different data stream scenarios. Experimental results were modeled using conventional propagation equations, showing good agreement with the measured data. It is envisaged that the proposed method could be used in combination with DSP techniques for the estimation and compensation of propagation distortions in fiber links, not only in conventional IM/DD systems, but also in coherent systems with advanced modulation formats. (C) 2015 Optical Society of America

引用

页码：4356 / 4359

页数：4

共 10 条

[1]

Agrawal G.P., 2002, Nonlinear fiber optics

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