在现场部署的光纤电缆中使用高容量相位敏感放大传输
Zhirong Chen1, Xiaojie Guo2,3, Yingyu Chen1
1School of Electronics and Information Technology & Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems & Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China.
Communications engineering
|July 27, 2025
概括
阶段敏感放大器 (PSA) 通过改善信号噪声比,显著提高光纤传输能力. 现场试验表明,PSA可以在部署的光纤系统中增强高容量,双向WDM信号传输.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 材料科学 材料科学 材料科学
背景情况:
- 阶段敏感放大器 (PSA) 通过选择性放大基于阶段的信号,比传统放大器提供优越的信号噪声比 (SNR) 增强.
- 在部署的光纤传输系统中,PSA的实际应用是有限的,尽管它们具有理论上的优势.
研究的目的:
- 在现实世界,部署光纤传输系统中评估相位敏感放大功率的性能.
- 为了证明高容量,使用PSA进行波长分割多重复合 (WDM) 信号传输.
主要方法:
- 在部署的光纤电缆中使用相同波长的双向WDM传输进行了实地试验.
- 采用一个宽带PSA,采用周期极化酸波导,作为接收器预放大器.
- 缓解干扰交叉声,主要来自雷利回散,以改善SNR.
主要成果:
- 实现了10.944 Tb·s-1.1的净传输能力.
- 达到了541.728 Tb·s-1·km的净容量距离产物.
- 超出了先前阶段敏感放大传输研究的性能基准.
结论:
- 在实际部署场景中,基于PSA的预放大对大容量光纤传输有效.
- 现场试验验证了PSA在提高SNR和传输能力方面的实际好处.
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