Optical reshaping of 40-Gb/s NRZ and RZ signals without wavelength conversion

被引：18

作者：

Contestabile, Giampiero ^{[1
]}

Presi, Marco ^{[1
]}

Proiletti, Roberto ^{[1
]}

Ciaramella, Ernesto ^{[1
]}

机构：

[1] Scuola Super Sant Anna, I-56124 Pisa, Italy

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 13-16期

关键词：

all-optical regeneration; cross-gain compression (XGC); semiconductor optical amplifier (SOA);

D O I：

10.1109/LPT.2008.924646

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：

We experimentally demonstrate a scheme for all-optical reshaping at 40 Gb/s that is wavelength preserving and transparent to both nonreturn-to-zero and return-to-zero ON-OFF keying signals. Eye-diagram reshaping is confirmed by means of bit-error rate versus threshold measurements on both modulation formats. The scheme is based on cross-gain compression in an semiconductor optical amplifier (SOA) and uses two SOAs that are not in interferometric configuration. Due to its working principle, this method is polarization-independent and suitable, in principle, for higher bit rates.

引用

页码：1133 / 1135

页数：3