Impact of PMD in Single-Receiver and Polarization-Diverse Direct-Detection Optical OFDM
Impact of PMD in Single-Receiver and Polarization-Diverse Direct-Detection Optical OFDM
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DOI：
10.1109/jlt.2009.2016987
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发表时间：
2009-07
影响因子：
4.7
通讯作者：
B. Schmidt;Arthur James Lowery;J. Armstrong
中科院分区：
文献类型：
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作者：
B. Schmidt;Arthur James Lowery;J. Armstrong
偏振模色散 (PMD) 会导致直接检测光学正交频分复用 (DDO-OFDM) 系统中的频率选择性衰落。在本文中，我们研究了这种衰落的影响。我们首先分析一阶 PMD 引起的频率选择性衰落。然后，我们使用全阶仿真来估计 PMD 对单接收器 DDO-OFDM 的影响，以生成作为信噪比 (SNR) 惩罚函数的中断概率。对三种单接收器 DDO-OFDM 格式的性能进行了比较，发现一种能够最小化载波和边带之间的频率差的新格式对 PMD 的容忍度更高。然后我们介绍一种 DDO-OFM 系统，该系统在接收器中包括极化分集和载波增强。对各种配置的效果进行了仿真，结果表明可以在 40 GHz 的光带宽内实现 42.7 Gb/s 的数据速率，并且 PMD 损失可以忽略不计。
Polarization-mode dispersion (PMD) can cause frequency-selective fading in direct-detection optical orthogonal frequency division multiplexing (DDO-OFDM) systems. In this paper, we examine the effects of this fading. We begin with an analysis of the frequency-selective fading caused by first-order PMD. We then estimate the impact of PMD in single-receiver DDO-OFDM using all-order simulations to generate outage probabilities as a function of signal-to-noise ratio (SNR) penalty. The performances of three single-receiver DDO-OFDM formats are compared and a new format that minimizes the frequency difference between the carrier and sideband is found to be more tolerant to PMD. We then introduce a DDO-OFM system that includes polarization diversity and carrier boost in the receiver. The effects of various configurations are simulated and the results suggest that a data rate of 42.7 Gb/s can be achieved within an optical bandwidth of 40 GHz, and with negligible PMD penalties.