光学系统和网络中的偏移- qam多载波技术(特邀)

2014 13th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2014-12-18 DOI:10.1109/ICOCN.2014.6987059

Jian Zhao

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引用次数: 4

摘要

本文综述了用于光通信系统和网络的偏置正交调幅(QAM)多载波技术。研究了该技术的正交性条件，并讨论了其在电子和光学领域的实现。研究表明，与传统OFDM相比，基于离散傅里叶变换的偏置qam正交频分复用(OFDM)可以大大降低色散补偿所需的保护间隔长度，并降低实现复杂度。与全光OFDM和奈奎斯特WDM相比，光复用偏置qam超级信道表现出更好的性能，并放宽了设备规格，以最大限度地减少信道间串扰。

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Offset-QAM multicarrier technology for optical systems and networks (Invited)

In this paper, we review the multicarrier technology using offset quadrature amplitude modulation (QAM) for optical communication systems and networks. We investigate the orthogonality condition of this technology and discuss its electronic and optical domain implementation. It is shown that discrete-Fourier-transform based offset-QAM orthogonal frequency division multiplexing (OFDM) can greatly relax the required length of guard interval for dispersion compensation compared to conventional OFDM, and reduce the implementation complexity compared to Nyquist FDM. Optically-multiplexed offset-QAM super-channels exhibit improved performance, and relaxed device specifications for minimizing inter-channel crosstalk compared to all-optical OFDM and Nyquist WDM.

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2014 13th International Conference on Optical Communications and Networks (ICOCN)

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