36-GHz 140-Mb/s radio-over-fiber transmission using an optical injection phase-lock loop source

We report the first millimeter-wave radio-over-fiber transmission demonstration using optical phase-lock loop techniques. A 36-GHz 140-Mb/s ASK modulated carrier was transmitted through 65 km of standard single-mode fiber with a bit-error rate (BER) of <10/sup -9/, using an optical injection phase-lock loop based on fiber-pigtailed commercially available components.