A Cost-Effective and Precoding-Free Optical Frequency Multiplication Scheme for mmW Photonic Fronthauls
[EN] In this letter, we demonstrate a novel and cost-effective scheme for upconverting data to radiofrequency (RF) in a millimeter wave (mmW) photonic fronthaul based on optical frequency multiplication for frequency up-conversion. The approach is based on an electrical mixer and a Dual-Drive Mach-Z...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/229339 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/229339 |
| Access Level: | acceso abierto |
| Palavra-chave: | Dual-drive Mach-Zehnder modulator Millimeter wave Optical access networks Radio-over-fiber RF mixer |
| Resumo: | [EN] In this letter, we demonstrate a novel and cost-effective scheme for upconverting data to radiofrequency (RF) in a millimeter wave (mmW) photonic fronthaul based on optical frequency multiplication for frequency up-conversion. The approach is based on an electrical mixer and a Dual-Drive Mach-Zehnder modulator (DD-MZM) where carrier suppressed double-sideband (CS-DSB) modulation is held for mmW signal generation after photodetection. The viability of the approach is demonstrated by transmitting 5G orthogonal frequency division multiplexing (OFDM) signals with quadrature phase shift keying (QPSK) and 64-quadrature amplitude modulation (QAM) across a 3 m long radio link as well as 10 km of standard single-mode fiber (SSMF) link in the 40 GHz mmW band. We assessed the system performance by evaluating the error-vector-magnitude (EVM), also focusing on the received optical and electrical power (RoP and ReP, respectively), with minimum EVM of 2.8 % for maximum RoP, while the full link leads to 3.4 % in this condition. Moreover, the maximum transmission throughput of the system for full link scenario reached 692 Mb/s and 1800 Mb/s for 5G OFDM and single carrier signals, respectively. The experimental measurements confirm the robustness and simplicity of the proposed approach to be employed for future mobile mmW communication networks deployment without using precoding techniques and optical filtering. |
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