Figure 3
From: Author Correction: Coherent photonic Terahertz transmitters compatible with direct comb modulation

Techniques for the generation of SSB-C signals: (a) IM SSB-C, and (b) field SSB-C; and techniques for the mitigation of the signal-signal beat interference (SSBI): (c) setting a guard band (GB) between carrier and sideband, and (d) iterative pre-distortion.