Abstract

The effect of interplay between self-phase modulation (SPM) and group velocity dispersion (GVD), known as the SPM-GVD effect, is analytically and numerically examined in radio-over-fiber transmissions using an optical single sideband with carrier (OSSB+C) signals. To study the effect analytically, we introduce a coupled mode approach considering interactions between the carrier and the fundamental sidebands. During the analyses, we find the effects of SPM-GVD can be divided into two classes: parametric amplification, known as modulation instability (MI), and phase rotation through a dispersive interaction. Numerical analyses assuming a small modulation depth confirm the analytical prediction, while those assuming a large modulation depth show additional transmission penalties. The penalty in the MI case is introduced by gain saturation of the parametric amplification, whereas that in the dispersive case is caused by the dependence of phase rotation on the modulation depth.

© 2014 Optical Society of America

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