Improved chromatic dispersion tolerance for optical duobinary transmission using coherent detection

被引：3
|
作者：
Goldfarb, G [1 ]
Kim, C
Li, GF
机构：
[1] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA
[2] Univ Cent Florida, Coll Opt & Photon, FPCE, Orlando, FL 32816 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 1-4期
基金：
美国国家科学基金会;
关键词：
chromatic dispersion; constellation diagram; optical duobinary; optical fiber communication;
D O I：
10.1109/LPT.2005.863640
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 impact of chromatic dispersion on the complex electric field of an optical phase-coded duobinary signal is investigated through numerical simulation. Dispersion causes distortion and rotation of the optical constellation with increasing transmission distance, leading to eye closure of the received signal. When direct detection is employed, rapid eye closure starts after approximately 213 km. Employing coherent detection increases this dispersion limit by 70 km.
引用
收藏
页码：517 / 519
页数：3
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