A ROF Access Network for Simultaneous Generation and Transmission Multiband Signals Based on Frequency Octupling and FWM Techniques

Figure 1

The principle of multiple-frequency optical mm-wave signals generation using DP-MZM and FWM in SOA for ROF system LD: laser diode, MZM: Mach-Zehnder modulator, OC: optical coupler, OS: optical splitter, SOA: semiconductor optical amplifier, TOF: tunable optical filter, and PD: photodio.