56 Gb/s direct-detection polarization multiplexing multi-band CAP transmission

被引：5
|
作者：
Wang, Zhixin [1 ,2 ]
Tao, Li [1 ]
Wang, Yiguang [1 ]
Chi, Nan [1 ]
机构：
[1] Fudan Univ, Dept Commun Sci & Engn, Minist Educ, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China
[2] Natl Engn Res Ctr Broadband Networks & Applicat, Shanghai 200433, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2015年 / 13卷 / 08期
关键词：
CARRIER-LESS AMPLITUDE; PHASE MODULATION; SYSTEM;
D O I：
10.3788/COL201513.080602
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Carrierless amplitude and phase (CAP) modulation is generating increasing interest for short-reach optical communications. Polarization multiplexing (PolMux) is a good way to improve the CAP system's data rate further with the limited bandwidth of electrical devices. In this Letter, we experimentally demonstrate a 56 Gb/s direct-detection PolMux CAP system over a 15 km fiber link for the first time, to our best knowledge. Two-band CAP modulation with different modulated orders for each band is employed. An optical filter at the receiver is utilized to realize the polarization separation. No extra digital signal processing for polarization-dependent distortion is required.
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页数：4
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