Novel Method of Generating QAM-16 Signals at 21.3 Gbaud and Transmission Over 480 km

被引：6
|
作者：
Makovejs, Sergejs [1 ]
Millar, David S. [1 ]
Mikhailov, Vitaly [2 ]
Gavioli, Giancarlo [3 ]
Killey, Robert I. [1 ]
Savory, Seb J. [1 ]
Bayvel, Polina [1 ]
机构：
[1] UCL, Dept Elect & Elect Engn, Opt Networks Grp, London WC1E 7JE, England
[2] OFS Labs, Somerset, NJ 08873 USA
[3] Politecn Torino, I-10129 Turin, Italy
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2010年 / 22卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Advanced optical modulation formats; coherent detection; optical signal processing; quadrature amplitude modulation (QAM);
D O I：
10.1109/LPT.2009.2035633
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we report on a novel method of generating a square quadrature amplitude modulation (QAM-16) signal at 21.3 Gbaud and its subsequent transmission over 480 km. The proposed scheme generates a QAM-16 signal by optically processing a quadrature phase-shift-keying signal using a phase-stabilized fiber interferometer. We also discuss the inherent advantages and limitations of optical and electrical generation methods of QAM-16 signals, and digital signal processing algorithms used in the experiment.
引用
收藏
页码：36 / 38
页数：3
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