A 65-km span unamplified transmission of 36-GHz radio-over-fiber signals using an optical injection phase-lock loop

We report generation and transmission of single side-band millimeter-wave modulated optical signals using a reference-modulated optical injection phase-lock loop. A 36-GHz 68-Mbit/s differential phase shift keyed signal is transmitted over a 65-km unamplified standard single-mode fiber using no dispersion compensation with a BER < 10/sup -9/.