Abstract
This article presents non-return-to-zero (NRZ), binary phase-shift keying (BPSK) data transmission over 100 m (50-mu m core) and 200 m (62.5-mu m core) millimetre-wave multimode radio-over-fibre (RoF) links. The system consists of a 1.55-mu m tunable laser source, a wide bandwidth 40-Gb/s Mach-Zehnder Modulator (MZM), and a highspeed photodiode for detection. Successful data transmission of 900 Mb/s over 100 m and 500 Mb/s over 200-m multimode RoF links is achieved. A millimetre-wave carrier frequency of 38.8 GHz is used for the data transmission over multimode fibres which is believed to the highest reported so far. After the RoF links eye-diagrams are recovered with good Q-factor performance recorded. These measurements show that multimode fibre links have the potential for use in next generation in-building/campus wide pico-cellular and low cost distributed antenna systems. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:254-256, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25727