Investigation of a SMF-MMF Link for a Remote Heterodyne 60-GHz OFDM RoF Based Gigabit Wireless Access Topology

• Published in: Journal of lightwave technology Vol. 32; no. 20; pp. 3645 - 3653
• Main Authors: Mikroulis, Spiros, Omomukuyo, Oluyemi, Thakur, Manoj P., Mitchell, John E.
• Format: Journal Article
• Language: English
• Published: New York IEEE 15.10.2014; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Connectors; Couplings; Loss measurement; OFDM; Optical fiber dispersion; Optical fiber networks; Wireless communication; multimode fiber; radio over fiber; Millimeter wave communications; orthogonal frequency division multiplexing (OFDM)
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2014.2322752

A simple single-mode fiber/multimode fiber (SMF-MMF) 60-GHz radio over fiber scheme using a conventional central launching technique at 1550 nm is proposed and experimentally evaluated. The system targets cost-efficient Gigabit wireless access using already installed indoor MMF fed by a passive optical network topology. A complete characterization of the composite SMF/MMF/SMF optical medium is presented, in terms of coupling loss, power stability, and chromatic and modal dispersion. A robust multiband orthogonal frequency-division multiplexing optical single-side-band technique, employing envelope detector scheme, is used as to address the performance limitations imposed by the simple SMF-MMF coupling scheme, chromatic dispersion degradation, and phase noise owing to ordinary long-wavelength lasers. A characterization of the system is performed and a 3.84-Gb/s transmission is demonstrated over a scheme including 17.5-km SMF and 250-m MMF.