低延迟 100 Gb/s PAM-4 PON，在 20 千米反谐振中空芯光纤上的功率预算为 42.5 dB。

IF 3.1 2区物理与天体物理 Q2 OPTICS Optics letters Pub Date : 2024-10-01 DOI:10.1364/OL.532737

Hui Chen, Lei Zhang, Xu Zhang, Qibing Wang, Chao Li, Siyue Jin, Xumeng Liu, Zichen Liu, Honglin Ji, Zhaopeng Xu, Jie Luo, Lei Wang, Junwen Zhang, Zhixue He, Nan Chi, Shaohua Yu

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引用次数: 0

摘要

数据流量的急剧增长要求开发具有更高功率预算的更高速、更低延迟的强度调制和直接检测（IM/DD）无源光网络（PON）。为了解决传统硅基实心光纤的固有局限性，反谐振空心光纤受到了学术界和工业界的极大关注。在这封信中，我们介绍了利用低复杂度数字信号处理（DSP）在 C 波段通过 20 千米反谐振空芯光纤进行 100 Gb/s PAM-4 IM/DD PON 传输的实验演示。通过在光线路终端 (OLT) 侧使用 3 抽头加权查找表 (LUT)，在光网络单元 (ONU) 侧使用半导体光放大器作为前置放大器，实现了 42.5 dB 的创纪录高功率预算。据我们所知，这是迄今为止报告的 IM/DD PON 的最高功率预算，为 PON 系统的未来发展提供了一个前景广阔的替代方案。

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Low-latency 100 Gb/s PAM-4 PON with a 42.5 dB power budget over the 20 km anti-resonant hollow-core fiber.

The surging growth in data traffic has necessitated the development of higher-speed, lower-latency intensity modulation and direct detection (IM/DD) passive optical networks (PONs) with higher power budgets. To address the inherent limitations of traditional silica-based solid-core fibers, anti-resonant hollow-core fibers have garnered significant attention from both academia and industry. In this Letter, we present an experimental demonstration of 100 Gb/s PAM-4 IM/DD PON transmission over a 20 km anti-resonant hollow-core fiber in the C band, utilizing low-complexity digital signal processing (DSP). The result achieves a record high power budget of 42.5 dB, facilitated by a 3-tap weighted lookup table (LUT) at the optical line terminal (OLT) side and a semiconductor optical amplifier used as a preamplifier at the optical network unit (ONU) side. This represents the highest power budget reported for IM/DD PON to date, to the best of our knowledge, and offers a promising alternative for the future evolution of PON systems.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.