Direct-Detection Optical OFDM Transmission System Without Frequency Guard Band

Direct-Detection Optical OFDM Transmission System Without Frequency Guard Band
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无频率保护带的直接检测光正交频分复用传输系统

DOI:
10.1109/lpt.2010.2044656
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发表时间:
2010-06
影响因子:
2.6
通讯作者:
Dong, Ze
Dong, Ze
中科院分区:
工程技术3区
文献类型:
--
作者:
Cao, Zizheng;Yu, Jianjun;Wang, Wenpei;Chen, Lin;Dong, Ze

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交织器和turbo码技术被用于高频谱效率的直接检测光正交频分复用(OFDM)传输系统中,通过减轻子载波信号中的不平衡噪声分布,允许光接收器灵敏度的显著改善。在误码率为10-4时,5.18 Gb/s、7.77 Gb/s编码OFDM(解码后为5.18 Gb/s)和7.77 Gb/s交织器编码OFDM(解码后为5.18 Gb/s)在200 km单模光纤上的光信噪比分别为23.7、18.0和17.1 dB。
Interleaver and turbo code techniques are used in high spectral-efficient direct-detection optical orthogonal frequency-division-multiplexing (OFDM) transmission systems allowing significant improvement of optical receiver sensitivity by mitigating the unbalanced noise distribution in subcarrier signals. The optical signal-to-noise ratio of 5.18 Gb/s, 7.77-Gb/s coded OFDM (5.18 Gb/s after decoding), and 7.77-Gb/s coded OFDM with interleaver (5.18 Gb/s after decoding) over 200-km single-mode fiber at a bit-error rate of 10-4 are 23.7, 18.0, and 17.1 dB, respectively.
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