ALL-OPTICAL FREQUENCY CONVERTER BASED ON FIBER FOURWAVE MIXING FOR BIDIRECTIONAL RADIO-OVER-FIBER SYSTEMS

摘要

A frequency up/down-converter is proposed based on fiber four-wave-mixing (FWM) between the output of a dual-wavelength fiber laser and the modulated optical carrier for bidirection radio-over-fiber (RoF) systems. Frequency up-conversion from 1.50 to 11.08 GHz and down-conversion from 10.60 to 1.02 GHz are successfully demonstrated and a small efficiency difference between up- and down-conversions has been achieved. A proposal of setting up a bidirectional RoF system based on fiber FWM frequency converter is presented.