Optically powered 5G WDM fronthaul network with weakly-coupled multicore fiber

Author:

Yang Hailin1ORCID,Wang Shan1,Peng Di1ORCID,Qin Yuwen12ORCID,Fu Songnian1ORCID

Affiliation:

1. Guangdong University of Technology

2. Synergy Innovation Institute of GDUT

Abstract

The number of base stations (BSs) for the fifth generation (5G) wireless network is substantially increased, as each coverage is greatly reduced. Therefore, both the miniaturization and the densification of BSs suffer from the challenges of electrical power supply and deployment cost. Here, we present an optically powered 5G fronthaul network, in support of the co-propagation of spatial-division-multiplexing (SDM) energy light and wavelength-division-multiplexing (WDM) 5G new radio (NR) signals over the weakly-coupled multicore fiber (WC-MCF). When the 60-W energy light at 1064.8-nm is equally distributed among the outer six cores, and the 9-Gbit/s 5G NR WDM signals are transmitted over the central core of 1-km WC seven-core fiber (WC-7CF), we can collect total 11.9-W electrical power at the remote node, for the purpose of optically powered small cells. Meanwhile, the error-vector magnitude (EVM) values of 1.5-Gbit/s 5G NR 64-level quadrature amplitude modulation orthogonal frequency division multiplexing (64QAM-OFDM) signals at the central frequency of 3.5 GHz fluctuate within a range of 0.3%∼0.39%, under a received electrical power of −25 dBm, for all six-wavelength channels. Six optically powered small cells are equipped with the characteristics of centralized management and flexible access-rate.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Guangdong Introducing Innovative and Entrepreneurial Teams of “The Pearl River Talent Recruitment Program”

Research and Development Plan in Key Areas of Guangdong Province

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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