HYBRID MODULATOR STRUCTURES FOR SUBCARRIER AND HARMONIC SUBCARRIER OPTICAL SINGLE SIDE-BAND

Optical single-sideband (OSSB) modulation is useful for mitigation of fiber chromatic dispersion effects on intensity modulated-direct detec tion (IMDD) optical links. We show that hybrid modulator structures ba sed on compatible single-sideband (CSSB) theory serve as general purpo se OSSE modulators. We further show that both harmonically upconverted optical double-sideband (ODSB) and harmonically upconverted OSSE sign als, generated through the nonlinear characteristics of optical modula tors, both provide significant dispersion improvements.