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Authors: L. Bogaert, J. Van Kerrebrouck, H. Li, I. Lima de Paula, K. Van Gasse, C.-Y. Wu, P. Ossieur, S. Lemey, H. Rogier, P. Demeester, G. Roelkens, J. Bauwelinck, G. Torfs
Title: SiPhotonics/GaAs 28-GHz Transceiver with Reflective EAM for Laser-Less mmWave-over-Fiber
Format: International Journal
Publication date: Accepted for publication. Not yet published
Journal/Conference/Book: Journal of Lightwave Technologies (invited)
DOI: 10.1109/JLT.2020.3021175
Citations: Look up on Google Scholar

Abstract

Exploring mmWave frequencies and adopting small-cell architectures are two key enablers for increased wireless data rates. To make these evolutions economically viable, centralized architectures based on radio-over-fiber (RoF) are devised. To reduce the complexity of the cellular network even further, RF-over-Fiber transmission schemes are adopted in combination with reflective uplink operation. This paper relies on a very low complexity narrowband GaAs electronics / Si photonics transceiver for scalable RFoF architectures with which we demonstrate a Fiber-wireless link capable of transmitting over 7 Gb/s in down- and uplink for a 2km fiber and 5m wireless link in the 28 GHz band. Furthermore, it is shown that Rayleigh degradation caused by reflective uplink operation can be avoided by using a coherent detection scheme.

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