基于大跨度空心抗谐振光纤的性能增强数字移动前传

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-04-01 DOI:10.1109/LPT.2025.3556731

Hui Chen;Lei Zhang;Qibing Wang;Xu Zhang;Siyue Jin;Jie Luo;Lei Wang;Zhixue He

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引用次数: 0

摘要

我们提出了性能增强的delta-sigma调制数字移动前传（MFH）架构的第一个实验演示，该架构使用大跨度空心芯抗谐振光纤（HCF）。通过利用高波特率四电平脉冲调幅（PAM-4）和强度调制和直接检测（IM/DD）， 2位δ - σ调制（DSM）量化实现了高阶1024/4096正交调幅（QAM）的离散多音（DMT）信号在c波段超过11 km和20 km的HCF传输，分别满足前传误差矢量幅度（EVM）阈值为2.5%和1.29%。与传统的标准单模光纤（SMF）传输相比，基于HCF的传输在保持数字信号处理（DSP）简化的同时，实现了两倍以上的容量提升，为未来的MFH架构提供了一种很有前景的解决方案。

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Performance-Enhanced Digital Mobile Fronthaul Based on Long-Span Hollow-Core Anti-Resonant Fiber

We present the first experimental demonstration of a performance-enhanced delta-sigma modulated digital mobile fronthaul (MFH) architecture using long-span hollow-core anti-resonant fiber (HCF). By utilizing high baud rate four-level pulse amplitude modulation (PAM-4) with intensity modulation and direct detection (IM/DD), 2-bit delta-sigma modulation (DSM) quantization enables the transmission of high-order 1024/4096-ary quadrature amplitude modulation (QAM) based discrete multi-tone (DMT) signal over 11 km and 20 km of HCF in the C-band, meeting the fronthaul error vector magnitude (EVM) thresholds of 2.5% and 1.29%, respectively. Compared with conventional standard single-mode fiber (SMF) transmission, HCF based transmission achieves more than two-fold capacity enhancement while maintaining simplified digital signal processing (DSP), providing a promising solution for future MFH architecture.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.