Amplified-spontaneous noise limit of optical OFDM lightwave systems.
Amplified-spontaneous noise limit of optical OFDM lightwave systems.
复制标题
DOI：
10.1364/oe.16.000860
复制
发表时间：
2008-01
期刊：
影响因子：
3.8
通讯作者：
Arthur James Lowery
中科院分区：
文献类型：
--
作者：
Arthur James Lowery
光正交频分复用（O-OFDM）系统使用电子数字计算提供色散补偿，可以快速适应光链路或光网络的变化。最近的演示显示了几千公里的补偿。早期的模拟和分析表明，灵敏度优于不归零系统；然而，他们假设光学滤波器具有非常窄的带宽和窄线宽激光器。本文通过分析和仿真，探讨了光学滤波器带宽和激光线宽对相干和直接探测系统的影响。
Optical Orthogonal Frequency Division Multiplexing (O-OFDM) systems use electronic digital computation to provide dispersion compensation that can be rapidly adapted to changes in the optical link or optical network. Recent demonstrations have shown compensation of several thousand kilometers. Earlier simulations and analysis showed better sensitivities than non-return to zero systems; however, they assumed optical filters with very narrow bandwidths and narrow-linewidth lasers. This paper explores the effect of the optical filter bandwidths and laser linewidths for both coherent and direct-detection systems using analysis and simulations.