Impact of Modulator Bias on the OSNR Requirement of Direct-Detection Optical OFDM

被引：23

作者：

Leibrich, Jochen ^{[1
]}

Ali, Abdulamir ^{[1
]}

Paul, Henning ^{[2
]}

Rosenkranz, Werner ^{[1
]}

Kammeyer, Karl-Dirk ^{[2
]}

机构：

[1] Univ Kiel, Chair Commun, Fac Engn, D-24143 Kiel, Germany

[2] Univ Bremen, Dept Commun Engn, D-28359 Bremen, Germany

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 15期

关键词：

Direct detection; Mach-Zehnder modulator (MZM); optical modulation formats; optical orthogonal frequency-division multiplexing (OOFDM);

D O I：

10.1109/LPT.2009.2022174

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 optical orthogonal frequency-division multiplexing (OFDM) with direct detection, modulator bias voltage has a significant impact on receiver sensitivity. It is a compromise between control of carrier power and nonlinear distortion of the OFDM signal. In this letter, sensitivity improvement due to reduction of carrier power is treated analytically. Its range of validity is examined by simulation. The impact of nonlinearity is identified as the difference in sensitivity between a linear and a nonlinear model.

引用

页码：1033 / 1035

页数：3

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