Simultaneous chromatic dispersion, polarization-mode-dispersion and OSNR monitoring at 40Gbit/s

被引：9

作者：

Baker-Meflah, Lamia ^{[1
]}

Thomsen, Benn ^{[1
]}

Mitchell, John ^{[1
]}

Bayvel, Polina ^{[1
]}

机构：

[1] UCL, Dept Elect & Elect Engn, London WC1E 7JE, England

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 20期

关键词：

D O I：

10.1364/OE.16.015999

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel method for independent and simultaneous monitoring of chromatic dispersion ( CD), first-order PMD and OSNR in 40Gbit/s systems is proposed and demonstrated. This is performed using in-band tone monitoring of 5GHz, optically down-converted to a low intermediate-frequency (IF) of 10kHz. The measurement provides a large monitoring range with good accuracies for CD (4742 +/- 100ps/nm), differential group delay (DGD) (200 +/- 4ps) and OSNR (23 +/- 1dB), independently of the bit-rate. In addition, the use of electro-absorption modulators (EAM) for the simultaneous down-conversion of all channels and the use of low-speed detectors makes it cost effective for multi-channel operation. (C) 2008 Optical Society of America

引用

页码：15999 / 16004

页数：6

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