概括
这项研究引入了一种使用双光侧带 (twin-OSSB) 调制进行高效数据传输的新模拟中间频率过光纤 (IFoF) 方法. 该方法实现了稳定的信号,并显示了先进的光通信系统有前途的接收器灵敏度.
科学领域:
- 光子学和光学通信技术
- 信号处理 信号处理
- 光纤技术 光纤技术 的应用.
背景情况:
- 对于现代光学网络来说,中间频率过光纤 (IFoF) 系统至关重要.
- 在IFoF中实现高带宽效率和信号稳定仍然是一个挑战.
- 现有的方法往往需要复杂的控制偏差和两极分化.
研究的目的:
- 提出一种新的带宽效率高的连贯模拟IFoF方法.
- 为了证明稳定的调制,没有复杂的偏差漂移和极化控制.
- 在灵敏度和数据速率方面评估拟议系统的性能.
主要方法:
- 使用双光学侧带 (双OSSB) 调制方案.
- 使用双调制的电吸调制激光器 (EML).
- 在接收器 (Rx) 实现具有相位噪声取消 (PNC) 的异质检测.
主要成果:
- 成功演示了一个8 Gbps的聚合双OSSB信号.
- 传输两个正方形相位移键 (QPSK) 通道.
- 获得的接收器灵敏度为QPSK-twin-OSSB的-30dBm和16-QAM单用户的-25dBm.
- 在光学背对背 (btb) 和25公里的标准单模光纤 (SSMF) 上进行了测试.
结论:
- 拟议的双OSSB IFoF方法提供了一个稳定且带宽高效的解决方案.
- 该系统表现出适合光纤通信的强大性能.
- 使用PNC检测异质子,可以有效地恢复所示设置中的通道.
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