Hybrid Modulated Multiband Coherent Optical OFDM for Low-Complexity Phase Noise Compensation

被引：14
|
作者：
Chen, Xi [1 ]
He, Jiayuan [1 ]
Che, Di [1 ]
Shieh, William [1 ]
机构：
[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2015年 / 33卷 / 01期
关键词：
Coherent optical orthogonal frequency-division multiplexing (OFDM); digital filter bank; laser phase noise; DFT-SPREAD OFDM; FIBER; SYSTEMS; FREQUENCY; TOLERANCE;
D O I：
10.1109/JLT.2014.2358373
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 this paper, we propose and demonstrate effective laser phase noise compensation for coherent optical orthogonal frequency-division multiplexing (OFDM) systems that have long OFDM symbols. The phase noise compensation is achieved via hybrid modulated multiband optical OFDM, aided by the digital filter bank technique. For this, one of the multiple subbands is modulated as discrete Fourier transform spread OFDM. Our experimental results show that laser phase noise up to 1 MHz can be compensated for 114.8-Gb/s 16-QAM signals with 480-km standard single mode fiber transmission.
引用
收藏
页码：126 / 132
页数：7
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