Direct-Detection Optical OFDM Transmission System With Pre-Emphasis Technique

Direct-Detection Optical OFDM Transmission System With Pre-Emphasis Technique
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采用预加重技术的直接检测光 OFDM 传输系统

DOI:
10.1109/jlt.2011.2154299
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发表时间:
2011-07
影响因子:
4.7
通讯作者:
Chen, Lin
Chen, Lin
中科院分区:
工程技术2区
文献类型:
--
作者:
Gao, Yang;Yu, Jianjun;Xiao, Jiangnan;Cao, Zizheng;Li, Fan;Chen, Lin

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研究了直接检测(DD)光正交频分复用(OFDM)系统中子载波对子载波混合干扰和频率衰落的影响。我们还提出并实验验证了一种新的带有预强调技术的DD - OFDM传输方案。通过在高频下预先强调OFDM子载波的功率,在我们的实验中,在100公里的SMF-28传输后,与未采用该技术的常规传输相比,在误码率为1 × 10-4的情况下,接收灵敏度提高了约2 dB。
We investigated the effect of subcarriers-to-subcarriers mixing interference and frequency fading in direct-detection (DD) optical orthogonal frequency-division multiplexing (OFDM) system. We also proposed and experimentally demonstrated a novel DD OFDM transmission scheme with pre-emphasis technique. By pre-emphasizing the power of the OFDM subcarriers at the high frequency, the received sensitivity at our experiment was improved about 2 dB at a bit error rate of 1 × 10-4 after 100-km SMF-28 transmission compared to the regular one without this technique.
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