A system for conveying a signal by optical fiber may include a converter for converting a radio frequency signal to an optical frequency signal, the converter having an interferometer modulator for providing a carrier suppressed optical frequency signal having a sideband modulated by the radio frequency...http://www.google.de/patents/US6115162?utm_source=gb-gplus-sharePatent US6115162 - Double side band, carrier suppressed modulated coherent fiber optic link
