Amplitude Regeneration of RZ-DPSK Signals in Single-Pump Fiber-Optic Parametric Amplifiers

被引：42

作者：

Peucheret, Christophe ^{[1
]}

Lorenzen, Michael

Seoane, Jorge ^{[1
]}

Noordegraaf, Danny ^{[1
]}

Nielsen, Carsten Vandel

Gruner-Nielsen, Lars ^{[2
]}

Rottwitt, Karsten ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Foton, Dept Photon Engn, DK-2800 Lyngby, Denmark

[2] OFS Fitel Denmark ApS, DK-2605 Brondby, Denmark

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 13期

关键词：

Differential phase-shift keying (DPSK); fiber-optic parametric amplifier (FOPA); optical regeneration; PHASE;

D O I：

10.1109/LPT.2009.2019968

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：

The input power tolerance of a single-pump fiber-optic parametric amplifier (FOPA) is experimentally shown to be enhanced for return-to-zero differential phase-shift keying (RZ-DPSK) modulation compared to RZ ON-OFF keying modulation at 40 Gb/s. The improved nonlinear tolerance is exploited to demonstrate amplitude regeneration of a distorted RZ-DPSK signal in a gain-saturated FOPA. An optical signal-to-noise ratio penalty of 3.5 dB after amplitude distortion is shown to be reduced to 0.2 dB after the FOPA, thus clearly demonstrating the regenerative nature of saturated FOPAs for RZ-DPSK modulation.

引用

页码：872 / 874

页数：3

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