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高级QAM NANF传输使用集成的MIMO等分器与低复杂度的决策定向载波阶段估计
Optics letters
|May 1, 2024
概括
使用嵌套反共振无节点光纤 (NANF) 实现了高速光纤通信,并采用极化分裂多重复合 (PDM) 和概率造型 (PS). 这种先进的系统成功地传输了60Gbaud的PDM-PS-256QAM信号超过2公里,达到前置错误校正值.
科学领域:
- 光学通信是指光学通信.
- 光纤工程是指光纤的工程.
- 信号处理 信号处理
背景情况:
- 嵌套反共振无节点光纤 (NANF) 为高容量光学传输提供了潜力.
- 极化分裂复杂化 (PDM) 和概率造型 (PS) 是提高光谱效率的先进技术.
- 现有的均等化方法在复杂的调制格式中面临着交叉声和相位干扰的挑战.
研究的目的:
- 通过实验证明使用NANF的高速光学传输.
- 整合和验证用于PDM-PS信号的强大的信号处理方案.
- 为了实现超出软决策前错误校正 (SD-FEC) 值的传输.
主要方法:
- 高速传输系统的实验实现.
- 使用极化分裂复杂化 (PDM) 和概率塑造 (PS) 技术.
- 实现一个低复杂度的多输入多输出 (MIMO) 实值等效器 (RVE),与决策导向载波阶段估计 (DDCPE) 集成.
主要成果:
- 一个60Gbaud的PDM-PS-256QAM信号的成功传输.
- 在IQ交叉声和相位干扰方面表现出强度.
- 通过2公里的NANF链接实现了信号传输.
结论:
- 拟议的MIMO-RVE-DDCPE方案有效地克服了高阶调制格式的信号损伤.
- 通过先进的信号处理,在NANF中高速传输是可行的.
- 该系统符合软决策前置错误校正 (SD-FEC) 的严格要求.
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