Frequency and Phase Estimation for Coherent QPSK Transmission With Unlocked DFB Lasers

被引：34

作者：

Hoffmann, Sebastian ^{[1
]}

Bhandare, Suhas ^{[1
]}

Pfau, Timo ^{[1
]}

Adamczk, Olaf ^{[1
]}

Woerdehoff, Christian ^{[1
]}

Peveling, Ralf ^{[1
]}

Porrmann, Mario ^{[1
]}

Noe, Reinhold ^{[1
]}

机构：

[1] Univ Gesamthsch Paderborn, Inst Elect Engn, D-33098 Paderborn, Germany

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 17-20期

关键词：

Frequency estimation (FE); optical communication; phase estimation (PE); quadrature phase-shift keying (QPSK); synchronous detection;

D O I：

10.1109/LPT.2008.928846

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：

This letter presents a hardware-efficient frequency, estimator and an advanced phase estimation algorithm capable of tracking the phase noise of a 10-GBaud optical quadrature phase-shift-keying transmission system with standard distributed-feedback lasers in the presence of a frequency mismatch up to 1.2 GHz. This algorithm allows us to implement a digital coherent receiver without an analog frequency control circuit.

引用

页码：1569 / 1571

页数：3

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