OPTICAL SINGLE-SIDE-BAND SUPPRESSED-CARRIER MODULATOR FOR WIDE-BAND SIGNAL-PROCESSING

We develop and demonstrate a technique for implementing a wide-band op tical single-sideband suppressed-carrier modulator. The technique reli es on a dual-electrode traveling wave modulator for sideband suppressi on and a Sagnac fiber-loop interferometer for carrier suppression, The implementation uses all commercially available components and demonst rates >40 dB optical carrier suppression, and as much as 60 dB unwante d signal sideband rejection across a 6-20 GHz microwave frequency rang e. The modulator is used to demonstrate broad-band spectral shifting a nd inversion across the 3-18 GHz frequency range.