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准相干技术在C波段25 Gbit/s光模块中的研究与应用
Authors
卜勤练
孔令桥
Publication date
1 January 2021
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
针对传统C波段高速光模块传输距离过短的问题,文章对一种准相干接收技术进行了研究,结合现有25 Gbit/s光模块进行了实验,并讨论了准相干接收技术的应用方案。研究发现,准相干接收技术以外差相干检测技术为基础,具有结构简单和成本低等优点,在不使用额外的电或光色散补偿技术的前提下,准相干接收机也能有效减少色散对高速光模块传输距离的影响。实验结果表明,准相干接收机对因色散而劣化的光信号具有很强的处理能力,使用准相干接收机可以显著提高光模块的传输灵敏度,能够将采用传统强度调制技术的C波段25 Gbit/s光模块的传输距离从当前的10 km左右延长至25 km以上
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Last time updated on 26/01/2023