概括
本研究引入了一种新型的相位噪声估计方案,用于概率化塑造双极化连续频谱非线性频率分割复杂化系统. 拟议的方法提高了传输范围和激光线宽宽度的耐受性.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 非线性光学是非线性光学.
背景情况:
- 阶段噪声估计 (PNE) 在先进的光通信系统中至关重要.
- 在双极化连续频谱非线性频率分割多重复合 (DP-CS-NFDM) 系统中,概率造型 (PS) 引入了独特的相位噪声特性.
- 传统的PNE方法与PS带来的损害作斗争.
研究的目的:
- 为PS DP-CS-NFDM系统开发一个低复杂度的PNE方案.
- 为了建模和减轻爆发阶段内的噪声损害.
- 在存在概率塑造的情况下,提高PNE的性能.
主要方法:
- 在非线性里埃域中开发了一种严格的相位噪声模型.
- 提出了一个QPSK分区和决策辅助 (QP-DA) PNE计划.
- 在40 GHz PS DP-CS-NFDM系统上进行实验验证.
主要成果:
- 拟议的QP-DA方案有效地模拟了爆发阶段内的噪声.
- 与盲相搜索 (BPS) 基准相比,实现了187公里的传输范围延伸.
- 与BPS相比,激光线宽宽度耐受性得到了475kHz的改善.
- 与BPS相比,QP-DA方案的计算复杂性只有8.4%.
结论:
- 在PSDP-CS-NFDM系统中,QP-DA方案为PNE提供了显著的性能改进.
- 拟议的方法提供了一个实际的解决方案,以提高传输范围和线路宽度容忍度.
- 对于先进的光学网络来说,可以实现低复杂度和高性能PNE.
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