研究目的
To propose a multi-core fiber (MCF) based concept for simultaneously generating millimeter wave (mm-wave) signals, implementing a radio over fiber (RoF) link, and a power over fiber (PoF) link for future 5G technology.
研究成果
The proposed MCF-based system successfully integrates mm-wave generation, RoF, and PoF technologies, offering a simplified and efficient solution for future microcell-based communication systems. The approach has the potential to reduce the complexity and power consumption of remote radio units in 5G networks.
研究不足
The length of the multicore fiber and its chromatic dispersion can affect the phase noise of the oscillation and limit the fiber length at specific oscillation frequencies. The system's performance is also dependent on the dispersion of the fiber, phase noise requirements, and the bandwidth of the electrical filter in the OEO loop.
1：Experimental Design and Method Selection:
The proposed system uses a 9-core MCF to implement a dual-loop optoelectronic oscillator (OEO) for mm-wave generation, a RoF link for data transmission, and a PoF link for powering the remote antenna unit (RAU).
2：Sample Selection and Data Sources:
The system utilizes specific cores of the MCF for different functions, with the number of cores depending on the number of microcells.
3：List of Experimental Equipment and Materials:
Includes a fiber laser (FL), dual-drive Mach-Zehnder modulator (DD-MZM), erbium doped fiber amplifier (EDFA), wavelength selective switch (WSS), balanced photodiode (BPD), band pass filter (BPF), electrical amplifier (EA), and photonic power converter (PPC).
4：Experimental Procedures and Operational Workflow:
The optical signal from the FL is modulated and amplified before being processed through the WSS. Selected tones are used for the OEO loops, mm-wave generation, and data modulation. The PoF link transmits power to the RAU.
5：Data Analysis Methods:
The performance of the generated electrical carrier is analyzed in terms of phase noise and side mode suppression ratio (SMSR).
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