Optical subcarrier multiplexing system using time sampling multiplexer to suppress optical beat interference

Abstract

We propose an optical subcarrier multiplexing system that uses optical sampling multiplexer to suppress optical beat interference in an up-link. This type of interference can be dramatically suppressed without distorting the signal by replacing the passive coupler-based multiplexer in a conventional subcarrier multiplexing system with our proposed time sampling multiplexer. We discuss from theoretical viewpoints the effect of our proposed multiplexer on the BER, CNR and CIR performance.