Directly Modulated CATV/Radio-on-Fiber Systems Based on External Light Injection Technique and Optical SSB Filter

A directly modulated lightwave transport system based on external light injection technique and optical single sideband filter at the receiving site is proposed and demonstrated. Simultaneous transmission of CATV and microwave signals, good performances of carrier-to-noise ratio, composite second order and composite triple beat were obtained for CATV signals; as well as low bit error rate value was achieved for radio-on-fiber applications.