Quantum limit of direct-detection receivers using duobinary transmission

被引：26

作者：

Bosco, G ^{[1
]}

Carena, A ^{[1
]}

Curri, V ^{[1
]}

Gaudino, R ^{[1
]}

Poggiolini, P ^{[1
]}

机构：

[1] Politecn Torino, Dipartimento Elettron, I-10129 Turin, Italy

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 01期

关键词：

bandwidth efficiency; dense wavelength-division multiplexing (DWDM); duobinary; modulation formats; quantum limit;

D O I：

10.1109/LPT.2002.805787

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, a rigorous analysis defining the fundamental limits of direct-detection optically preamplified receivers using duobinary transmission is presented, showing that the quantum limit of duobinary can exceed that of IMDD by 0.91 dB. In addition, we show through simulation that a practical duobinary implementation can closely approach such performance.

引用

页码：102 / 104

页数：3

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