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.
Authors
- Zhixue He (ORCID: https://orcid.org/0000-0001-8533-2247)
- Siyue Jin (ORCID: https://orcid.org/0000-0001-5976-3027)
- Lei Zhang (ORCID: https://orcid.org/0000-0002-5460-4243)
- Xu Zhang (ORCID: https://orcid.org/0000-0001-5481-9968)
- Hui Chen (ORCID: https://orcid.org/0000-0002-7256-1865)
- Lei Wang (ORCID: https://orcid.org/0000-0001-7223-6264)
- Jie Luo (ORCID: https://orcid.org/0000-0002-7546-0808)
- Qibing Wang (ORCID: https://orcid.org/0000-0002-6161-2778)
Institutions
- Yangtze Optical Electronic (China) (CN)
- Peng Cheng Laboratory (CN)
Publication Details
- Journal
- IEEE Photonics Technology Letters
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1109/lpt.2025.3556731
- Primary Topic
- Advanced Photonic Communication Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00