Fiber-optic transmission of 60 GHz DBPSK signal employing the dual-mode PSK modulation (DMPM) method

Demonstrated successfully a 20 km fiber-optic transmission of a 156 Mb/s-DBPSK 60 GHz optical mm-wave signal with a new modulation technique employed; the dual-mode phase shift keying modulation (DMPM) method that we have proposed for the use in advanced mm-wave fiber-radio systems based on the passive base stations (PBSs). The experiment was performed to investigate the DMPM performance from a realistic viewpoint, and the following attractive features were confirmed for its PBS application; high modulation index, high dispersion tolerance and compactness.